Columnar to equiaxed transition in additively manufactured CoCrFeMnNi high entropy alloy
Hongge Li,Yongjiang Huang,Songshan Jiang,Yunzhuo Lu,Xiaoyu Gao,Xing Lu,Zhiliang Ning,Jianfei Sun +7 more
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TLDR
In this article, a single-track CoCrFeMnNi high entropy alloy was prepared by laser melting deposition and the microstructural evolution of columnar to equiaxed transition was experimentally observed across the molten pool.About:
This article is published in Materials & Design.The article was published on 2021-01-01 and is currently open access. It has received 52 citations till now. The article focuses on the topics: Equiaxed crystals.read more
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Additive manufactured high entropy alloys: A review on the microstructure and properties
TL;DR: In this paper , the additive manufactured high entropy alloys (HEAs) are summarized in terms of microstructure characteristics, mechanical and some functional properties reported so far, and provided readers with a fundamental understanding of this research field.
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Fabrication of laminated high entropy alloys using differences in laser melting deposition characteristics of FeCoCrNi and FeCoCrNiAl
Yangchuan Cai,Xiaopeng Li,Hongbo Xia,Yan Cui,Sunusi Marwana Manladan,Sunusi Marwana Manladan,Lisong Zhu,Mengdie Shan,Da Sun,Tai Wang,Xin Lv,Jian Han +11 more
TL;DR: In this paper, the differences in the forming process, phase structure, and grain morphology of FeCoCrNi+FeCoCr Ni-Al-laminated high-entropy alloys were systematically investigated during the fabrication of the two HEAs in order to understand the microstructure transition in laminated heterogeneous HEAs fabricated by laser additive manufacturing.
Journal ArticleDOI
Understanding Stellite-6 coating prepared by laser cladding: Convection and columnar-to-equiaxed transition
TL;DR: In this article , a finite element model including the changes of convection and temperature field in the melt pool was established, and the effects of laser power on the geometric characteristics and columnar-to-equiaxed transformation behavior of the coating were analyzed.
References
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Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
Jien-Wei Yeh,Swe-Kai Chen,Su-Jien Lin,Jon-Yiew Gan,Tsung-Shune Chin,Tsung-Shune Chin,Tao-Tsung Shun,Chun-Huei Tsau,Shou-Yi Chang +8 more
TL;DR: A new approach for the design of alloys is presented in this paper, where high-entropy alloys with multi-principal elements were synthesized using well-developed processing technologies.
Journal ArticleDOI
Microstructural development in equiatomic multicomponent alloys
Brian Cantor,Brian Cantor,I.T.H. Chang,I.T.H. Chang,P. Knight,P. Knight,A.J.B. Vincent,A.J.B. Vincent +7 more
TL;DR: In this paper, it was shown that the confusion principle does not apply, and other factors are more important in promoting glass formation of late transition metal rich multicomponent alloys.
Journal ArticleDOI
A critical review of high entropy alloys and related concepts
Daniel B. Miracle,Oleg N. Senkov +1 more
TL;DR: High entropy alloys (HEAs) are barely 12 years old as discussed by the authors, and the field has stimulated new ideas and inspired the exploration of the vast composition space offered by multi-principal element alloys.
Journal ArticleDOI
Microstructures and properties of high-entropy alloys
TL;DR: The concept of high entropy introduces a new path of developing advanced materials with unique properties, which cannot be achieved by the conventional micro-alloying approach based on only one dominant element as mentioned in this paper.
Journal ArticleDOI
A fracture-resistant high-entropy alloy for cryogenic applications
Bernd Gludovatz,Anton Hohenwarter,Dhiraj Catoor,Edwin H. Chang,Easo P. George,Easo P. George,Robert O. Ritchie,Robert O. Ritchie +7 more
TL;DR: This work examined a five-element high-entropy alloy, CrMnFeCoNi, which forms a single-phase face-centered cubic solid solution, and found it to have exceptional damage tolerance with tensile strengths above 1 GPa and fracture toughness values exceeding 200 MPa·m1/2.
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