Results 131 to 140 of about 80,138 (346)

Crystallographic Texture and Phase Transformation in Titanium Alloys Fabricated via Powder Bed Fusion Processes: A Comprehensive Review

Metals
Additive manufacturing (AM) of titanium alloys enables the production of complex, high-performance components, but the steep thermal gradients and rapid solidification involved make it challenging to control crystallographic texture and phase evolution ...
Rajesh Kannan Arasappan, Hafiz Muhammad Rehan Tariq, Ha-Seong Baek, Minki Kim, Tea-Sung Jun   +4 more
doaj   +1 more source

Deformable Eutectic Alloy With Near‐Theoretical Yield Strength via Hierarchical Nanoscale Multiphases and Sessile Defects

Advanced Science, EarlyView.
A CoCrFeNiTa0.4 eutectic high‐entropy alloy achieves a near‐theoretical yield strength of 2.6 GPa with 13.6% plasticity. This breakthrough stems from a hierarchical nanostructure (FCC‐Laves lamellae with L12/D022 precipitates), which alleviates the inter‐phase modulus/hardness mismatch through synergistic strengthening and toughening, guiding the ...
Yusha Luo, Qianqian Wang, Bo Sun, Ruixin Sheng, Zhijun Guo, Gaopeng Zou, Zhe Jia, Yang Tong, Gang Sha, Peter K. Liaw, Baolong Shen   +10 more
wiley   +1 more source

Life cycle assessment of additively manufactured elastocaloric Ni-Ti heat pump/refrigeration components and the effect of design geometry on the environmental impact categories

Results in Engineering
Elastocaloric Ni-Ti alloys offer solid-state heat pump and cooling applications. The environmental impact of elastocaloric Ni-Ti parts manufactured via powder bed fusion was assessed using life cycle assessment with the ReCiPe method.
Anesu Nyabadza, Karthikeyan Tamil, Lehar Asip Khan, Sujith S. Kumar, Corné Muilwijk, Greg McNamara, Kevin O'Toole, Lorna Fitzsimons, Dermot Brabazon   +8 more
doaj   +1 more source

Thermophysical Phenomena in Metal Additive Manufacturing by Selective Laser Melting: Fundamentals, Modeling, Simulation and Experimentation

, 2017
Among the many additive manufacturing (AM) processes for metallic materials, selective laser melting (SLM) is arguably the most versatile in terms of its potential to realize complex geometries along with tailored microstructure.
Gibbs, Jonathan S., Hart, A. John, Meier, Christoph, Penny, Ryan W., Zou, Yu   +4 more
core   +1 more source

Functional properties and shape memory effect of Nitinol manufactured via electron beam powder bed fusion

, 2023
Alexander Fink, Zongwen Fu, Carolin Körner   +2 more
openalex   +1 more source

Addressing Oxygen Embrittlement in Additively Manufactured Titanium via Cu‐Mediated Interstitial Site Engineering

Advanced Science, EarlyView.
A novel “Cu‐mediated interstitial site engineering” strategy is introduced to thermodynamically stabilize hexagonal oxygen (hex‐O) configurations in oxygen‐containing titanium alloys. The hex‐O configuration activates multiple slip systems and enhances dislocation pinning via long‐range repulsion.
Xiaobin Lin, Xudong Rong, Jiachen Xie, Xinru Wang, Jianteng Wang, Zhihang Xu, Dongdong Zhao, Shiwei Pan, Feng Qian, Longlong Ma, Gang Sha, Xiang Zhang, Chunsheng Shi, Chunnian He, Naiqin Zhao   +14 more
wiley   +1 more source

Powder movement rules of laser powder bed fusion additive manufacturing aluminum alloy based on discrete element method

Advances in Mechanical Engineering
Laser Powder Bed Fusion (LPBF) is a promising metal additive manufacturing technology based on layer by layer powder spreading, and powder bed uniformity has a great influence on the forming quality.
Pan Lu, Zhang Chen-lin, Liu Tong, Wang Liang, Zhang Heng-hua   +4 more
doaj   +1 more source

Revealing the Mechanisms of Smoke during Electron Beam–Powder Bed Fusion by High-Speed Synchrotron Radiography

Journal of Manufacturing and Materials Processing
Electron beam–powder bed fusion (PBF-EB) is an additive manufacturing process that utilizes an electron beam as the heat source to enable material fusion. However, the use of a charge-carrying heat source can sometimes result in sudden powder explosions,
Jihui Ye, Nick Semjatov, Pidassa Bidola, Greta Lindwall, Carolin Körner   +4 more
doaj   +1 more source

Defect evolution in laser powder bed fusion additive manufactured components during thermo-mechanical testing [PDF]

, 2017
The mechanical performance of additively manufactured (AM) components remains an issue, limiting the implementation of AM technologies. In this work, a new method is presented, to examine the evolution of defects in an Inconel 718 two-bar test specimen ...
Clare, Adam T., Hyde, Christopher J., Leach, Richard K., Maskery, Ian, Thompson, Adam, Tuck, Christopher, Xu, Zhengkai   +6 more
core  

Orientation‐Dependent Phase Transformation Pathways Enabling Superior Superelastic and Elastocaloric Performance of NiTi Alloys

Advanced Science, EarlyView.
By integrating simulations and experiments, the preferred (001) crystallographic texture promotes reversible martensite formation through variant selection, enhancing both superelastic and elastocaloric performance. This work provides fundamental guidelines for designing high‐efficiency NiTi‐based functional materials. Abstract Developing elastocaloric
Jiaqi Lu, Muhammad Aziz, Hao Li, Chi Zhang, Zhifeng Huang, Fei Chen   +5 more
wiley   +1 more source