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Article
Materials Science, Multidisciplinary
G. Muthukumaran et al.
Summary: The effects of multiple laser shock peening (LSP) on the microstructure, residual stress, and mechanical strength of EN25 steel were investigated. The results showed that LSP treatment could increase compressive residual stress and hardness on the surface, as well as improve yield strength and ultimate tensile strength.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Coatings & Films
Anna Ermakova et al.
Summary: This study investigates the impact of laser shock peening surface treatment on corrosion-fatigue crack growth (CFCG) life enhancement of WAAM components made of ER70S-6 and ER100S-1 steel wires. The experimental results demonstrate the effectiveness of the examined surface treatment method for corrosion-fatigue life enhancement and crack growth retardation of WAAM built steel components, regardless of the material type and specimen orientation. Additionally, the measurement of residual stresses validates the influence of beneficial residual stresses on subsequent CFCG behavior of the material.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Cheng Chang et al.
Summary: MgZnCa alloy fabricated via SLM technology exhibits fine equiaxed grains and increased microhardness, with tribological behavior influenced mainly by adhesive, oxidation, and corrosive wear mechanisms. Wet friction shows a significantly higher average wear rate compared to dry friction.
Article
Nanoscience & Nanotechnology
Fengxia Wei et al.
Summary: This study compares the mechanical properties of additively manufactured (AM) SS316L and conventionally manufactured (CM) SS316L and finds that AM SS316L has more dislocations and low angle grain boundaries, resulting in different strengthening mechanisms. Furthermore, the distribution of coincident site lattice boundaries is more diverse in AM samples. Additionally, the behavior of AM grain boundaries under tensile strain is significantly different from CM samples.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Optics
Yi Wei et al.
Summary: This study explores the surface morphology and geometric characteristics of single tracks in micro selective laser melting (MSLM), and optimizes process parameters through orthogonal experiments on density, surface roughness, microstructure, microhardness, and tensile strength. The research shows that heat treatment leads to grain refinement, uniform organization, and improved mechanical properties. The optimal process parameters are determined, resulting in high part density, low surface roughness, and increased tensile strength after SRAT + ST treatment. The study emphasizes the importance of laser power and scanning speed in ensuring the continuity of single tracks forming.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Changyu Wang et al.
Summary: In this study, the surface microstructure of AISI 420 martensitic stainless steel was modified using laser shock peening (LSP) technique, and the deformation mechanisms were investigated through observing microstructural evolution. The results showed that laser shock wave caused severe deformation in the original sub micron carbide, leading to carbide fragmentation and promoting nanocrystallization of martensitic laths. Additionally, carbide decomposition occurred simultaneously with severe plastic deformation, and this, along with fine grain strengthening, precipitation strengthening, and dislocation strengthening induced by LSP, contributed to an increase in the strength and ductility of AISI 420 martensitic stainless steel.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Chemistry, Physical
Hao Wang et al.
Summary: The study shows that laser shock peening without protective coating can improve the surface roughness and enhance the mechanical properties of NiTi alloy. The research findings indicate a significant impact of LSP on the surface mechanical properties of NiTi alloy without protective coating.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
R. Vivek et al.
Summary: The formability of the austenitic grade of low Ni-treated steels was examined and found to have corrosion resistance properties suitable for a wide range of applications. The study used metal turning measure and fracture characterization techniques to investigate the material's deformation and fracture behavior. The presence of voids in the material causing residual stresses and leading to fractures was confirmed through both examinations.
JOURNAL OF NANOMATERIALS
(2022)
Article
Optics
Shiwen Zou et al.
Summary: The study found that increasing the scanning speed during manufacturing can lead to larger defects, some of which are caused by insufficient fusion. Additionally, the microstructural analysis revealed a cellular structure growth pattern in the CoCrW alloy. The wear mechanism at room temperature is abrasive wear, with varying friction coefficients and wear rates on different planes of the alloy.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
Yi Wei et al.
Summary: This study further optimized the optimal process parameters for micro selective laser melting (MSLM) forming SS316L. The influence of different laser diameters and powder particle sizes on forming laws was investigated. Microstructure observation revealed different defect forms and subtle structural differences in different specimens, which directly affected the mechanical properties.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Lingyi Liao et al.
Summary: In this study, a cross-scale investigation was conducted to explore the effects of laser shock peening (LSP) and physical vapor deposition (PVD) coating on the wear and corrosion resistance of FeCoCrNiAl high entropy alloys (HEA). The results revealed that LSP treatment enhanced the corrosion resistance by inducing compressive residual stress, while PVD coating exhibited reduced corrosion resistance due to grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Sanin Zulic et al.
Summary: This study investigates the fatigue life behavior of additively manufactured stainless steel 316L in a laser shock peening process, and finds that LSP operations can significantly improve residual stresses and fatigue life.
SURFACE ENGINEERING
(2022)
Review
Engineering, Manufacturing
N. Ahmed et al.
Summary: This paper reviews the research on L-PBF process parameter optimization for 316L steel components, including methods to maximize part density and achieve desired microstructure morphology, and introduces the research on numerical simulation approach for high density process parameter optimization.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Review
Nanoscience & Nanotechnology
S. Gowtham et al.
Summary: The demands in orthopaedics have not been fully met, with metal materials being used for bone repair and replacement and nanocomposites showing promising applications in the medical field.
JOURNAL OF NANOMATERIALS
(2022)
Article
Materials Science, Multidisciplinary
J. Bedmar et al.
Summary: The effect of surface roughness on the corrosion behavior of 316L stainless steel manufactured by LPBF has been evaluated. The study found that ground specimens exhibited higher corrosion resistance compared to the as-built samples. The as-built samples had lower corrosion resistance in electrochemical tests, and the ground specimens showed the lowest mass gain after high-temperature oxidation.
Review
Materials Science, Multidisciplinary
Nandita Limbasiya et al.
Summary: Selective Laser Melting (SLM) process has the potential to create unique 3D components of AlSi10Mg with exceptional degrees of freedom for wide range of applications. However, the presence of porosity and other defects influenced by process parameters can be harmful to the fabricated components. This review provides a detailed description of the recent research on the SLM-AlSi10Mg, including the effect of process parameters on the mechanical properties of the alloy. The effect of heat treatments on the microstructure and overall mechanical properties of SLM fabricated AlSi10Mg alloy parts is also discussed. The findings reveal that the density of additively manufactured AlSi10Mg built part first increases with increase in energy density and then decreases above threshold value due to lack of fusion at low energy and at high energy key hole formation take place. Tensile strength of the built parts is affected by the process parameters, built direction, baseplate preheating temperature and built environment. The process parameters and built condition also affect the roughness and hardness of additively manufactured AlSi10Mg parts. Heat and surface treatment also help to improve the mechanical and surface properties by changing microstructure orientation. Furthermore, various surface finishing techniques based on energy sources such as mechanical, chemical and thermal can improve the surface roughness and fatigue life of SLM fabricated AlSi10Mg parts.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Meet Gor et al.
Summary: The mechanical properties of selectively laser melted stainless steel and maraging steel were compared with wrought materials, showing higher tensile strength and hardness but lower elongation in the additively manufactured samples.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
V. Chakkravarthy et al.
Summary: In this study, a promising next-generation biomedical implant material, Ti-30Nb-2Zr, was fabricated as a porous scaffold using selective laser melting technology. The results showed that Ti-30Nb-2Zr scaffolds have excellent osteointegration and tumor ablation ability, effectively preventing post-surgical tumor recurrence. Additionally, the porous nature of the scaffold contributes to its superior cell motility and adhesion.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
J. Kirubakaran et al.
Summary: This study utilized stir casting to manufacture metal matrix composites with TiC and MoS2 reinforcement, and Taguchi technique to analyze the factors affecting wear behavior. The results showed that the weight percentage of TiC and MoS2 was most influential in reducing wear rate, while sliding velocity and applied load increased the wear rate of the optimum composite.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
T. Sathies et al.
Summary: This study investigates the changes in the mechanical and microstructural characteristics of additively manufactured Stainless Steel SS316L components after heat treatment. The results show that heat treatment reduces the micro hardness value and tensile strength, increases ductility, and affects the grain size, porosity, and dislocation density.
MATERIALS TODAY-PROCEEDINGS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
Parth Saxena et al.
Summary: The study aims to investigate the effect of layer thickness and angle orientation on the hardness of SS316L stainless steel material. The results show that the best hardness (218.835 BHN) was achieved at an angle orientation of 90 degrees and a layer thickness of 40 mm.
MATERIALS TODAY-PROCEEDINGS
(2022)
Article
Materials Science, Multidisciplinary
Yandong Jing et al.
Summary: The study on the effect of laser shock peening (LSP) on 7050 aluminum alloy and 316L stainless steel revealed that no grain refinement was observed regardless of the laser cycles and energy density, but there was an increase in dislocation density. Tensile tests showed that the yield strength of both materials was improved after the LSP process, albeit sacrificing elongations. A potential method to calculate the dynamic yield stress of metallic materials was proposed with the help of the LSP process.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
M. Lakshmanan et al.
Summary: A highly wear resistant h-BN/NiTi reinforced Al7075 composite was successfully fabricated using ultrasonic aided squeeze casting technique, with the addition of Ti improving wettability and promoting grain refinement. High compressive residual stresses from casting pressure enhanced wear resistance, leading to a low friction coefficient of 0.2 in the counterpart.
Article
Nanoscience & Nanotechnology
Won-Sang Shin et al.
Summary: The study investigates the impact of heat treatment on the microstructure, mechanical properties, and wear behaviors of stainless steel 316L produced via selective laser melting. Heat treatments were found to improve elongation and microstructural evolution, but decreased surface hardness and tensile strength. The study concluded that heat treatment can enhance the performance of SS316L fabricated through SLM.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Coatings & Films
Brenda Juliet Martins Freitas et al.
Summary: Surface engineering through selective laser melting of boron-modified stainless steel coatings is an effective method to protect low carbon steel surfaces, improving wear resistance and hardness. The high-quality coatings produced in this study have shown promising wear-resistant properties and potential for widespread use in industrial applications.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Mechanical
P. Thasleem et al.
Summary: The study found that EDA-treated SLM AlSi10Mg exhibited lower wear-rate and coefficient of friction at both ambient and elevated temperatures due to its higher hardness. Cast specimens showed the highest wear-rate and COF among all samples. Lower wear-rate and higher COF were observed for all samples at elevated temperature compared to ambient temperature behavior.
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2021)
Review
Engineering, Manufacturing
Anil Kumar Singla et al.
Summary: This review critically examines the important contributions related to selective laser melting (SLM) process parameters, defects, and post-processing techniques for Ti6Al4V alloy. Proper selection of process parameters and post-treatment methods are crucial in improving mechanical behavior of SLMed components. Efforts have been made to identify correlations between SLM parameters and defects, as well as analyzing the impact of post-processing approaches on mechanical behavior and biocompatibility of SLM-fabricated Ti6Al4V alloy.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
Feng Yi et al.
Summary: The study shows that increasing the reuse cycles can increase the particle size but not change its chemical composition. Additionally, powder reuse between 1st-14th times has no negative effect on the mechanical properties of the SLM In718 parts.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Industrial
Karl-Christian Schwab et al.
Summary: The aim of the study was to adjust laser shock peening-induced residual stresses by applying defined prestress. Experimental and analytical investigations revealed a linear relationship between prestress and residual stress, with tensile prestress leading to greater penetration depth of compressive residual stress. The study demonstrated the effectiveness of prestress in altering residual stress profiles, showcasing its potential as a useful tool for residual stress design.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Engineering, Mechanical
V. Anandakrishnan et al.
INDUSTRIAL LUBRICATION AND TRIBOLOGY
(2020)
Article
Materials Science, Multidisciplinary
V Chakkravarthy et al.
Article
Materials Science, Multidisciplinary
Davoud Jafari et al.
MATERIALS & DESIGN
(2020)
Article
Engineering, Industrial
Binod Dhakal et al.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2020)
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Materials Science, Multidisciplinary
M. Lakshmanan et al.
Article
Materials Science, Multidisciplinary
Won Rae Kim et al.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
R. Gopi et al.
MATERIALS TODAY-PROCEEDINGS
(2020)
Article
Materials Science, Multidisciplinary
Wei Xiong et al.
MATERIALS & DESIGN
(2019)
Review
Engineering, Multidisciplinary
Balasubramanian Nagarajan et al.
Article
Chemistry, Physical
Wakshum M. Tucho et al.
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Nanoscience & Nanotechnology
Tomasz Kurzynowski et al.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2018)
Proceedings Paper
Materials Science, Multidisciplinary
Srinivasa Ch Rakesh et al.
MATERIALS TODAY-PROCEEDINGS
(2018)
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Engineering, Manufacturing
Subin Shrestha et al.
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
(2017)
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Engineering, Mechanical
M. Achintha et al.
INTERNATIONAL JOURNAL OF FATIGUE
(2014)