Results 41 to 50 of about 18,657 (260)

Effect of heating temperature on the hydrogen embrittlement susceptibility in hot stamped medium-Mn steel

工程科学学报
Medium-Mn steel with M3 microstructural characteristics (multiphase, multiscale, and metastable) is a promising third-generation automotive steel owing to its remarkable combination of ultrahigh strength and ductility.
Xiaoli ZHAO, Yongjian ZHANG, Cunyu WANG, Weijun HUI   +3 more
doaj   +1 more source

Effects of different intercritical annealing processes on microstructure and cryogenic toughness of newly designed medium-Mn and low-Ni steel

Journal of Materials Research and Technology, 2023
Through the idea of replacing Ni with Mn, a shortened process of ultra-fast cooling and two-step intercritical annealing for medium-Mn and low-Ni steel after rolling was designed.
Zhihui Liao, Ying Dong, Yu Du, Xiaonan Wang, Min Qi, Hongyan Wu, Xiuhua Gao, Linxiu Du   +7 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Study of hydrogen-induced delayed damage in medium manganese steel during in situ hydrogen charging: Role of heterogeneous structure in crack initiation and propagation

Materials & Design
Medium manganese (Mn) steel stands out as an exemplary representative of the latest generation of advanced high-strength steels intended for for automotive applications, attracting considerable interest due to its well-optimized microstructure and ...
Tao Xi, Zhishan Mi, Hao Fu, Qizhe Ye, Song Xiang, Bing Yang, Juanping Xu, Yu Yan, Jinxu Li   +8 more
doaj   +1 more source

Effect of Rolling Temperature on Microstructure and Mechanical Properties of a Nb-Mo Microalloyed Medium Mn Steel [PDF]

Materials Research, 2019
Warm rolling of medium Mn steel is a promising technology to meet the needs of vehicle weight reduction and energy conservation while ensuring the safety for passengers.
Shan Liu, Wenxia Li, Junhua Su, Yunpeng Wang, Minghui Cai   +4 more
doaj   +2 more sources

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Microsegregation models of solute elements during the solidification of high-carbon, medium-magnetic wear-resistant steel

工程科学学报
The microsegregation behavior of solute elements during the solidification of medium manganese wear-resistant steel has been systematically studied using directional solidification, electron probe microanalysis (EPMA), Factsage, and other experiments ...
Min LI, Hongbo LIU, Xiaorui CHE, Ying LIU, Jie ZHANG, Caidong ZHANG, Zhiqiang TIAN, Hao XU   +7 more
doaj   +1 more source

Influence of Surface Finish on the Tribological Performance of AlTiBN Coatings Deposited on Forming Tools

Advanced Engineering Materials, EarlyView.
Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver, Iker Alfonso, Eneko Barba, Javier León, José Antonio García, Iñaki Zalakain, Iván Fernández Martínez, Arley García‐Carrero, Christian Almeyda, Daniel Salcedo   +9 more
wiley   +1 more source