4.7 Article

Effect of remelting processes on the microstructure and mechanical behaviours of 18Ni-300 maraging steel manufactured by selective laser melting

Related references

Note: Only part of the references are listed.
Article Engineering, Industrial

Evolution mechanism of surface morphology and internal hole defect of 18Ni300 maraging steel fabricated by selective laser melting

Yuchao Bai et al.

Summary: This study investigated the influence of laser power, scanning speed, hatch spacing, and layer thickness on the performance of selective laser melted maraging steel parts, analyzing the formation and distribution behavior of internal defects. Within the selected parameters, the surface roughness ranged from 9.08-26.40 μm and tensile strength ranged from 544.14-1246.24 MPa. The internal defect transitioned from irregular lack-of-fusion to keyhole-included spherical hole with varying energy density. The volumetric energy density (VED) was found to have limitations in predicting surface quality and mechanical properties due to the complex characteristics of the molten pool.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY (2022)

Article Nanoscience & Nanotechnology

Hot isostatic pressing of a near α-Ti alloy: Temperature optimization, microstructural evolution and mechanical performance evaluation

Chao Cai et al.

Summary: Hot isostatic pressing (HIP) has advantages in processing difficult-to-process materials like the near-alpha titanium alloy Ta15 for aerospace applications. This study analyzed the phase constitutions, microstructural evolution, and tensile properties of HIP Ta15 specimens at different temperatures compared to Spark Plasma Sintering (SPS) counterparts. The results showed that HIP specimens at 500 degrees C exhibited higher tensile strength and ductility than SPS specimens, and had comparable high-temperature tensile properties to forged IMI 685 and better than sintered Ti60 parts.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2021)

Article Materials Science, Multidisciplinary

Microstructure and mechanical properties of WC reinforced 18Ni300 composites produced by selective laser melting

Zhenhua Li et al.

Summary: The addition of spherical WC powders significantly affects the microstructure and properties of 18Ni300 steel matrix composites. The composites exhibit changes in hardness, Young's modulus, tensile strength, and relative density with increasing WC content, while elongation at break first increases and then decreases. Cracks, tearing ridges, cleavage steps, pits, and small irregular WC powders increase with higher WC contents in the matrix.

MATERIALS CHARACTERIZATION (2021)

Article Chemistry, Physical

On the role of laser in situ re-melting into pore elimination of Ti-6Al-4V components fabricated by selective laser melting

Fei Lv et al.

Summary: The study proposes a mesoscale model to reveal the pore elimination mechanism in Ti-6Al-4V alloy during laser re-melting process. It is found that an appropriate re-melting scanning speed can effectively improve the material density and surface quality.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Article Materials Science, Multidisciplinary

Multiaxial fatigue behaviour of maraging steel produced by selective laser melting

R. Branco et al.

Summary: This study investigates the multiaxial fatigue behavior of maraging steel samples produced by selective laser melting, predicting fatigue crack initiation sites and angles while computing fatigue lifetime using a one-parameter damage law. By incorporating cyclic plasticity at the notch-controlled process zone, the study shows a strong correlation between experimental observations and predicted lives under various multiaxial loading scenarios.

MATERIALS & DESIGN (2021)

Article Materials Science, Multidisciplinary

Investigation of layer-by-layer laser remelting to improve surface quality, microstructure, and mechanical properties of laser powder bed fused AlSi10Mg alloy

Jiantao Zhou et al.

Summary: This study improved the surface quality and mechanical performance of LPBF AlSi10Mg material using the layer-by-layer laser remelting method, and established a three-dimensional multi-physics coupled transient model to explain the physical mechanism of laser remelting. Experimental results demonstrated significant enhancement in material densification, surface quality, microstructure, and mechanical properties after LR treatment.

MATERIALS & DESIGN (2021)

Article Nanoscience & Nanotechnology

Tuning process parameters to optimize microstructure and mechanical properties of novel maraging steel fabricated by selective laser melting

Yanan Wang et al.

Summary: Maraging steel with a new composition can improve strength and ductility through selective laser melting. The relationship between laser process parameters and forming defects was studied, and film-like reverted austenite was found in the as-fabricated part. Heat treatment processes can help alleviate the strength-ductility trade-off of maraging steel.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2021)

Article Materials Science, Multidisciplinary

Selective laser remelting of in-situ Al2O3 particles reinforced AlSi10Mg matrix composite: Densification, microstructure and microhardness

Ying Chen et al.

Summary: The study demonstrates that laser remelting can improve the density and microstructure of composite materials, but may lead to more gas pores and a high porosity level. Laser remelting has a promoting effect on grain growth and the formation of Al2O3 particles.

VACUUM (2021)

Article Materials Science, Multidisciplinary

Densification Behavior and Influence of Building Direction on High Anisotropy in Selective Laser Melting of High-Strength 18Ni-Co-Mo-Ti Maraging Steel

Yuchao Bai et al.

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2020)

Article Engineering, Manufacturing

A study on the production of thin-walled Ti6Al4V parts by selective laser melting

G. Miranda et al.

JOURNAL OF MANUFACTURING PROCESSES (2019)

Article Engineering, Industrial

Density and mechanical properties in selective laser melting of Invar 36 and stainless steel 316L

Mostafa Yakout et al.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY (2019)

Article Materials Science, Multidisciplinary

Precipitation in 300 grade maraging steel built by selective laser melting: Aging at 510 °C for 2 h

Sabrina Bodziak et al.

MATERIALS CHARACTERIZATION (2019)

Article Multidisciplinary Sciences

Dynamics of pore formation during laser powder bed fusion additive manufacturing

Aiden A. Martin et al.

NATURE COMMUNICATIONS (2019)

Article Automation & Control Systems

Quasi-static analysis of mechanical properties of Ti6Al4V lattice structures manufactured using selective laser melting

Qixiang Feng et al.

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY (2018)

Article Materials Science, Multidisciplinary

Microstructure and mechanical properties of Al-Mg-Zr alloys processed by selective laser melting

Joseph R. Croteau et al.

ACTA MATERIALIA (2018)

Article Materials Science, Multidisciplinary

Effect of laser rescanning on the grain microstructure of a selective laser melted Al-Mg-Zr alloy

S. Griffiths et al.

MATERIALS CHARACTERIZATION (2018)

Article Nanoscience & Nanotechnology

Processing optimisation, mechanical properties and microstructural evolution during selective laser melting of Cu-15Sn high-tin bronze

Zhongfa Mao et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2018)

Article Nanoscience & Nanotechnology

Laser powder bed fusion of Hastelloy X: Effects of hot isostatic pressing and the hot cracking mechanism

Quanquan Han et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2018)

Article Multidisciplinary Sciences

In situ X-ray imaging of defect and molten pool dynamics in laser additive manufacturing

Chu Lun Alex Leung et al.

NATURE COMMUNICATIONS (2018)

Article Materials Science, Multidisciplinary

Selective laser remelting of an additively manufactured Cu-Al-Ni-Mn shape-memory alloy

Tobias Gustmann et al.

MATERIALS & DESIGN (2018)

Article Nanoscience & Nanotechnology

Influence mechanism of parameters process and mechanical properties evolution mechanism of maraging steel 300 by selective laser melting

Yuchao Bai et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2017)

Article Materials Science, Multidisciplinary

Selective laser melting of nano-TiB2 decorated AlSi10Mg alloy with high fracture strength and ductility

X. P. Li et al.

ACTA MATERIALIA (2017)

Article Nanoscience & Nanotechnology

Porosity regrowth during heat treatment of hot isostatically pressed additively manufactured titanium components

S. Tammas-Williams et al.

SCRIPTA MATERIALIA (2016)

Article Materials Science, Multidisciplinary

Aging Behaviour and Mechanical Performance of 18-Ni 300 Steel Processed by Selective Laser Melting

Riccardo Casati et al.

METALS (2016)

Article Chemistry, Physical

Textures formed in a CoCrMo alloy by selective laser melting

Xin Zhou et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2015)

Article Nanoscience & Nanotechnology

Hall-Petch relation and boundary strengthening

N Hansen

SCRIPTA MATERIALIA (2004)