Exploring the Formation Mechanism, Evolution Law, and Precise Composition Control of Interstitial Oxygen in Body-Centered Cubic Mo

Article Materials Science, Multidisciplinary

Precise control of oxygen for titanium-zirconium-molybdenum alloy

Shi-Lei Li et al.

Summary: Organic carbon as a reducing agent has been used to reduce the oxygen content in TZM alloys with varying sintering methods, resulting in changes in the physical and chemical properties of the alloys.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2022)

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Article Materials Science, Multidisciplinary

Effects of oxygen on microstructure and evolution mechanism of body-centred-cubic molybdenum

Hairui Xing et al.

Summary: This study investigates the effects of oxygen on the microstructure and evolution mechanism of molybdenum. The results show that with increasing oxygen content, more oxygen exists in the pores between molybdenum grains, leading to a change in the fracture mode. These findings provide new insights for controlling and regulating the properties of molybdenum.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2022)

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Article Materials Science, Multidisciplinary

Excellent high-temperature strength and ductility of the ZrC nanoparticles dispersed molybdenum

K. Jing et al.

Summary: This study successfully fabricated nanostructured Mo-ZrC alloy with excellent mechanical properties and thermal stability through nanoscale ZrC dispersion and interface control. The alloy exhibited outstanding mechanical properties and thermal stability at both room temperature and high temperatures, with high tensile strength, ductility, and thermal stability. The synergistic effect of nanoscale ZrC particle dispersion strengthening, fine-grain strengthening, and grain boundary purification was revealed by the research results.

ACTA MATERIALIA (2022)

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Article Materials Science, Multidisciplinary

Preparation of nanoporous flake molybdenum powder by sol-gel reduction method

Xin-yu Zhu et al.

Summary: Nanoporous materials have great potential applications in catalysis, sensing, and fabrication of advanced materials due to their unique microstructure. This study focuses on the thermal decomposition mechanism of ammonium paramolybdate and the fabrication of nanoporous flake molybdenum powder. The results show that with an increase in pH value, the reaction becomes complete, leading to the gradual transformation of powder morphology into flakes with uniform distribution.

MATERIALS CHARACTERIZATION (2022)

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Article Materials Science, Multidisciplinary

The formation mechanism of micro-nano secondary phase in solid-liquid doped TZM alloy

Kuai-She Wang et al.

Summary: In this study, a TZM alloy with uniform distribution and an average secondary phase particle size of 940 nm was prepared through a solid-liquid doping preparation process. The formation mechanism of the micro-nano-level secondary phase in the alloy was revealed by thermodynamic calculation and confirmed by experimental analysis. The observations of micronano-scale and even nano-scale secondary phase particles provide important information for understanding the secondary phase precipitation mechanism in the manufacturing process of high-performance molybdenum alloys.

MATERIALS CHARACTERIZATION (2022)

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Article Materials Science, Multidisciplinary

Influence of Carbon and Oxygen on the Core Structure and Peierls Stress of Screw Dislocation in Molybdenum

Zi-Qi Wang et al.

Summary: This study investigates the interaction between interstitial solute carbon and oxygen and screw dislocation in bcc molybdenum. First-principles calculations and thermodynamic models are used to determine the influence of these solutes on the dislocation motion. It is found that carbon and oxygen segregate to the dislocation region and induce reconstruction of the dislocation core structure. Addition of carbon and oxygen increases the Peierls stresses and double-kink formation enthalpies, leading to a pinning effect on the dislocation motion.

METALS (2022)

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Article Nanoscience & Nanotechnology

A predictive model unifying hydrogen enhanced plasticity and decohesion

Meichao Lin et al.

Summary: The detrimental effect of hydrogen on metals, causing a transition from ductile to brittle failure mode, has been incorporated into a unified predictive framework. This model can accurately predict the embrittlement level and surface morphology changes in metals under hydrogen environment.

SCRIPTA MATERIALIA (2022)

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Article Materials Science, Multidisciplinary

Suppressing effect of carbon on oxygen-induced embrittlement in molybdenum grain boundary

Zi-Qi Wang et al.

Summary: The addition of carbon can effectively reduce the oxygen concentration in Mo grain boundaries and alleviate the oxygen-induced embrittlement. Carbon inhibits the segregation of oxygen in Mo grain boundaries more significantly compared to its direct strengthening effect.

COMPUTATIONAL MATERIALS SCIENCE (2021)

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Review Materials Science, Multidisciplinary

Adsorption and diffusion of oxygen on metal surfaces studied by first-principle study: A review

Hairui Xing et al.

Summary: First-principle calculations, particularly using density functional theory (DFT), are employed to investigate the structure and properties of oxygen/metal interfaces, specifically focusing on the adsorption and diffusion behavior of oxygen molecules or atoms on metal surfaces. This review aims to contribute to the understanding of adsorption properties and diffusion behavior on a metal surface at an atomic-scale, particularly for those interested in catalytic oxidation and corrosion applications.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2021)

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Article Materials Science, Multidisciplinary

On the role of pre-nitriding on improving the weldability of molybdenum alloy

Liang-Liang Zhang et al.

Summary: The study demonstrates that nitrided joints can effectively strengthen the fusion zone of molybdenum welds, increasing their tensile strength. Nitrogen primarily exists in the form of Mo2N in the nitrided base metal, playing a strengthening role during the welding thermal cycle.

MATERIALS & DESIGN (2021)

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Article Chemistry, Inorganic & Nuclear

Preferred growth of molybdenum thin films during magnetron sputtering

A. M. Minkin et al.

Summary: Molybdenum films deposited on a fused silica substrate exhibit nucleation textures with the <110> axis, which can later transform into growth textures with the (211) orientation during film growth. Increasing working gas pressure can decrease the film thickness and facilitate the texture transformation process.

JOURNAL OF SOLID STATE CHEMISTRY (2021)

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Article Materials Science, Multidisciplinary

Effect of plastic bending on high temperature creep resistance of molybdenum single crystals

A. I. . Dekhtyar et al.

Summary: This study demonstrates how plastic bending can increase the high-temperature strength of products for pipelines and tube shells by altering the dislocation structure and mechanism during creep. Through experiments on pre-bent molybdenum single crystals, it was found that the creep rate significantly decreases and dislocation creep transitions into diffusion creep under high temperature and stress conditions.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2021)

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Article Materials Science, Multidisciplinary

Enhancement of the corrosion resistance of Molybdenum by La2O3 dispersion

Wande Cairang et al.

Summary: The corrosion behavior of pure Molybdenum and Mo doped with 0.3 wt.% La2O3 in aerated 3.5 wt.% NaCl at 25 degrees C was studied. The doped Mo showed significantly increased corrosion resistance due to grain refinement and grain boundary purification, leading to the formation of a compact and protective oxide film. This research provides a recipe for improving the corrosion resistance of Mo alloys.

CORROSION SCIENCE (2021)

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Article Materials Science, Multidisciplinary

Evolution of carbon and oxygen concentration in tungsten prepared by field assisted sintering and its effect on ductility

Jakub Veverka et al.

Summary: The study investigates the preparation of pure tungsten samples using Field Assisted Sintering, and significant improvement in mechanical performance has been achieved for short dwell times (2 min) and vacuum or Ar + H2 atmosphere.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2021)

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Article Materials Science, Multidisciplinary

A First-Principles Study on Na and O Adsorption Behaviors on Mo (110) Surface

Qingqing Zeng et al.

Summary: In this study, the adsorption and diffusion behaviors of sodium atoms on the molybdenum surface were theoretically investigated using first-principles approach. Results showed that the presence of alloy rhenium atoms enhanced attractive interactions between sodium/oxygen and the molybdenum substrate, while sodium or oxygen atoms on the surface slowed down sodium diffusion by increasing the diffusion barrier.Additionally, the formation energy of surface vacancies was calculated, with sodium/oxygen co-adsorption leading to a low vacancy formation energy, indicating the potential corrosion mechanism in a liquid sodium environment with oxygen impurities. It was found that rhenium substitution atoms could protect the molybdenum surface by increasing the vacancy formation energy.

METALS (2021)

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Article Engineering, Manufacturing

Strengthening mechanisms of combined alloying with carbon and titanium on laser beam welded joints of molybdenum alloy

Liang-Liang Zhang et al.

Summary: This study successfully improved the properties of molybdenum alloy welding joints by adding carbon and titanium as alloying elements. Combined alloying significantly enhanced the strength and ductility, forming a second-phase strengthening effect, providing a new way to strengthen molybdenum and its alloy welded joints.

JOURNAL OF MANUFACTURING PROCESSES (2021)

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Article Materials Science, Multidisciplinary

Microstructure and texture evolution of pure molybdenum during hot deformation

Yu Xia et al.

MATERIALS CHARACTERIZATION (2020)

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Article Materials Science, Multidisciplinary

Influence of impurities on hot-rolled molybdenum for high temperature applications

Xingyu Li et al.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2020)

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Article Materials Science, Multidisciplinary

Influence of Carbon Diffusion and the Presence of Oxygen on the Microstructure of Molybdenum Powders Densified by SPS

Mathias Moser et al.

METALS (2020)

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Article Materials Science, Multidisciplinary

Oxygen solutes induced anomalous hardening, toughening and embrittlement in body-centered cubic vanadium

Jian Zhang et al.

ACTA MATERIALIA (2020)

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Article Materials Science, Multidisciplinary

The in fluence of transition metal solutes on the dissolution and diffusion of oxygen in tungsten

Kang-ni He et al.

JOURNAL OF NUCLEAR MATERIALS (2020)

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Article Materials Science, Multidisciplinary

The microstructure and texture evolution of pure molybdenum sheets under various rolling reductions

Hai-rui Xing et al.

MATERIALS CHARACTERIZATION (2020)

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Article Materials Science, Multidisciplinary

Segregation of interstitial light elements at grain boundaries in molybdenum

Haibin Ma et al.

MATERIALS TODAY COMMUNICATIONS (2020)

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Article Materials Science, Multidisciplinary

Effect of secondary phases on the strength and elongation of a novel Mo-TiC-ZrC-C alloy

Bo-liang Hu et al.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2020)

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Article Materials Science, Multidisciplinary

Mechanism of hardening and damage initiation in oxygen embrittlement of body-centred-cubic niobium

Ping-Jiong Yang et al.

ACTA MATERIALIA (2019)

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Article Materials Science, Multidisciplinary

Fabrication, characterization and optimization of high conductivity and high quality nanocrystalline molybdenum thin films

Anil K. Battu et al.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2019)

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Article Nanoscience & Nanotechnology

Fracture behavior of the La-doped molybdenum-titanium-zirconium alloy

Bo-liang Hu et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2019)

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Article Materials Science, Multidisciplinary

Microstructure and Mechanical Properties of a Fiber Welded Socket-Joint Made of Powder Metallurgy Molybdenum Alloy

Miao-Xia Xie et al.

METALS (2019)

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Article Materials Science, Multidisciplinary

Designing solid solution hardening to retain uniform ductility while quadrupling yield strength

Ping-Jiong Yang et al.

ACTA MATERIALIA (2019)

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Article Materials Science, Multidisciplinary

Investigation of stress-strain response, microstructure and texture of hot deformed pure molybdenum

Atanu Chaudhuri et al.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2018)

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Article Chemistry, Physical

Secondary phases formation in lanthanum-doped titanium-zirconium-molybdenum alloy

Bo-liang Hu et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2018)

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Article Engineering, Industrial

Stress relief and purification mechanisms for grain boundaries of electron beam welded TZM alloy joint with zirconium addition

Ting Wang et al.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY (2018)

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Article Nanoscience & Nanotechnology

Grain boundary segregation engineering in as-sintered molybdenum for improved ductility

K. Leitner (Nee Babinsky) et al.

SCRIPTA MATERIALIA (2018)

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Review Chemistry, Analytical

Atomic absorption spectrometry - A:multi element technique

Sergio L. C. Ferreira et al.

TRAC-TRENDS IN ANALYTICAL CHEMISTRY (2018)

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Article Materials Science, Multidisciplinary

How grain boundary chemistry controls the fracture mode of molybdenum

K. Leitner et al.

MATERIALS & DESIGN (2018)

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Article Multidisciplinary Sciences

Enhanced strength and ductility in a high-entropy alloy via ordered oxygen complexes

Zhifeng Lei et al.

NATURE (2018)

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Article Materials Science, Multidisciplinary

Sintering behavior and mechanical properties of Mo-TZM alloyed with nanotitanium carbide

Paul N. Browning et al.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2017)

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Article Materials Science, Multidisciplinary

On grain boundary segregation in molybdenum materials

K. Leitner (Babinsky) et al.

MATERIALS & DESIGN (2017)

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Article Materials Science, Multidisciplinary

Impact of segregated interstitials on structures and energies of tilt grain boundaries in Mo

I. I. Novoselov et al.

COMPUTATIONAL MATERIALS SCIENCE (2016)

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Article Materials Science, Multidisciplinary

Creep microstructures and creep behaviors of pure molybdenum sheet at 0.7 Tm

Gue Serb Cho et al.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2016)

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Article Materials Science, Multidisciplinary

Ab-initio search for cohesion-enhancing solute elements at grain boundaries in molybdenum and tungsten

Daniel Scheiber et al.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2016)

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Article Chemistry, Physical

On the chemistry of the carbides in a molybdenum base Mo-Hf-C alloy produced by powder metallurgy

D. Lang et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2016)

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Article Nanoscience & Nanotechnology

La2O3 effects on TZM alloy recovery, recrystallization and mechanical properties

Kuai-She Wang et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2015)

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Article Microscopy

Grain boundary study of technically pure molybdenum by combining APT and TKD

K. Babinsky et al.

ULTRAMICROSCOPY (2015)

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Article Materials Science, Multidisciplinary

Atom probe study of grain boundary segregation in technically pure molybdenum

K. Babinsky et al.

MATERIALS CHARACTERIZATION (2014)

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Article Materials Science, Multidisciplinary

Ab initio calculation of traction separation laws for a grain boundary in molybdenum with segregated C impurites

A. M. Tahir et al.

MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING (2013)

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Article Chemistry, Physical

Nanostructured high-strength molybdenum alloys with unprecedented tensile ductility

G. Liu et al.

NATURE MATERIALS (2013)

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Article Multidisciplinary Sciences

A new regime for mechanical annealing and strong sample-size strengthening in body centred cubic molybdenum

Ling Huang et al.

NATURE COMMUNICATIONS (2011)

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Article Materials Science, Multidisciplinary

On the recrystallization behavior of technically pure molybdenum

S. Primig et al.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2010)

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Article Materials Science, Multidisciplinary

Determination of Trace Elements in High Purity Tungsten by Solid-Phase Extraction/ICP-MS

Shin-ichi Hasegawa

MATERIALS TRANSACTIONS (2008)

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Article Materials Science, Multidisciplinary

Hardening mechanisms and recrystallization behaviour of several molybdenum alloys

T Mrotzek et al.

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS (2006)

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Article Nanoscience & Nanotechnology

Effect of Zr, B and C additions on the ductility of molybdenum

MK Miller et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2002)

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Article Nanoscience & Nanotechnology

Improvement in the ductility of molybdenum alloys due to grain boundary segregation

MK Miller et al.

SCRIPTA MATERIALIA (2002)

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Exploring the Formation Mechanism, Evolution Law, and Precise Composition Control of Interstitial Oxygen in Body-Centered Cubic Mo

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