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of 1 477
pro vyhledávání: '"Liaw, P. K."'
Refractory high-entropy alloys, RHEAs, are promising high-temperature structural materials. Their large compositional space poses great design challenges for phase control and high strength-ductility synergy. The present research pioneers using integ
Externí odkaz:
http://arxiv.org/abs/2312.04708
Autor:
Lebyodkin, Mikhail, Brechtl, Jamieson, Lebedkina, Tatiana, Wen, Kangkang, Liaw, Peter K., Shen, Tongde
Publikováno v:
Metals 2023, 13, 1770
Recent observations of jerky flow in high-entropy alloys (HEA) revealed a high role of self-organization of dislocations in their plasticity. The present work reports first results of investigation of stress fluctuations during plastic deformation of
Externí odkaz:
http://arxiv.org/abs/2310.12589
Autor:
Zhang, Hongmin, Meng, Fanchao, Meng, Haoyan, Tong, Yang, Liaw, Peter K., Yang, Xiao, Zhao, Lei, Wang, Haizhou, Gao, Yanfei, Chen, Shuying
The present work reported a novel L12-strengthening NiCoCrAlTi high entropy alloy (HEA) with an outstanding synergy of tensile strength and ductility at both ambient and high temperatures. Transmission electron microscopy (TEM) characterization revea
Externí odkaz:
http://arxiv.org/abs/2310.08850
We demonstrate the development of a series of refractory high-entropy alloys containing aluminum AlRHEAs in the ordered BCC-B2 phase by varying the aluminum content within 10 to 25 atomic percent, with the goal of high strength and good ductility syn
Externí odkaz:
http://arxiv.org/abs/2306.14057
Development of process-structure-property relationships in materials science is an important and challenging frontier which promises improved materials and reduced time and cost in production. Refractory high entropy alloys (RHEAs) are a class of mat
Externí odkaz:
http://arxiv.org/abs/2304.13932
In the pursuit of developing high-temperature alloys with improved properties for meeting the performance requirements of next-generation energy and aerospace demands, integrated computational materials engineering (ICME) has played a crucial role. I
Externí odkaz:
http://arxiv.org/abs/2211.16576
Machine learning is becoming a powerful tool to predict temperature-dependent yield strengths (YS) of structural materials, particularly for multi-principal-element systems. However, successful machine-learning predictions depend on the use of reason
Externí odkaz:
http://arxiv.org/abs/2207.05171
The exceptional mechanical strengths of medium and high-entropy alloys have been attributed to hardening in random solid solutions. Here, we evidence non-random chemical mixings in CrCoNi alloys, resulting from short range ordering. A novel data-mini
Externí odkaz:
http://arxiv.org/abs/2206.02004
Autor:
Sharma, Aayush, Singh, Prashant, Kirk, Tanner, Levitas, Velary I., Liaw, Peter K., Balasubramanian, Ganesh, Arroyave, Raymundo, Johnson, Duane D
Phase diagrams supported by density functional theory methods can be crucial for designing high-entropy alloys that are subset of multi-principal$-$element alloys. We present phase and property analysis of quinary (MoW)$_{x}$Zr$_{y}$(TaTi)$_{1-x-y}$
Externí odkaz:
http://arxiv.org/abs/2109.02641
Autor:
Brechtl, Jamieson, Liaw, Peter K.
This chapter presents a literature review of the serrated flow phenomenon in high-entropy alloys (HEAs). The serrated flow is important as it can result in permanent macroscopic and microstructural changes in HEAs. The literature reveals several impo
Externí odkaz:
http://arxiv.org/abs/2103.14504