Materials Reports  2019, Vol. 33 Issue (z1): 329-331 |
| METALS AND METAL MATRIX COMPOSITES |
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| Effect of Nitrogen Element on Microstructure and Mechanical Properties of Ti2ZrHfV0.5Mo0.2 High-entropy Alloy |
| ZHANG Changliang, LU Yiping
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| Provincial Key Laboratory of Solidification Control and Digital Preparation Technology, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 |
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Abstract Nitrogen is often used as a trace additive in conventional alloys to enhance the properties of the alloy. In this work, the effects of different contents of nitrogen on the microstructure and mechanical properties of Ti2ZrHfV0.5Mo0.2 high-entropy alloy (HEA) were investigated. It is found that the nitrogen element is completely dissolved in the HEA with a single-phase solid solution structure after adding a small amount of nitrogen. With the increase of nitrogen content, the nitride phase is formed from the solid solution supersaturation. At the same time, the compression mechanical properties test shows that the hardness and compressive yield strength of the HEA obviously improve with the addition of nitrogen element, but the plasticity decreases.
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Published: 05 July 2019
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| About author:: Changliang Zhang, a master student at Dalian University of Technology, focuses on high-entropy alloys and studies the effects of trace elements such as nitrogen on the microstructure and properties of high-entropy alloys.Yiping Lu, professor and doctoral tutor of Dalian University of Technology, presided over 2 projects of the National Natural Science Foundation, 1 youth fund project, 1st funded and specially funded by the China Postdoctoral Science Foundation, and participated in the National Natural Science Foundation of China Projects, etc. He has published 71 SCI papers, 47 first authors and communication authors, including internationally renowned journals such as Acta Materialia, Nanoscale, Scientific Report, Applied Physics Letters, and Journal of Applied Physics. The above results were cited 471 times by 52 research institutions SCI. The first author, Acta Materialia, cited a high-cited paper that autho-rized six invention patents. He was awarded the first prize of the 2015 Ministry of Education Technology Invention and the second prize of the 2015 National Technology Invention. Won the gold medal of the 44th Geneva International Invention Exhibition, China International Industry Fair Award (special grade). The international conference invited the report 4 times, the domestic invitation report 6 times, and the branch chairman 1 time. He is also the director and deputy secretary-general of the Solidification Science and Technology Branch of the China Society for Materials Research, and the director of the Youth Work Committee of the China Society for Materials Research. |
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1 Yeh J W, Chen S K, Lin S J, et al. Advanced Engineering Materials,2004,6(5),299.
2 Cantor B, Chang I T H, Knight P, et al. Materials Science and Enginee-ring: A,2004,375,213.
3 Zhang Y, Zuo T T, Tang Z, et al. Progress in Materials Science,2014,61,1.
4 吕昭平, 雷智锋, 黄海龙, 等.金属学报,2018,54(11),1553.
5 Poletti M G, Battezzati L. Acta Materialia,2014,75,297.
6 Jien-Wei Yeh. Annales de Chimie-Science des Materiaux,2006,31(6),633.
7 Li Z, Pradeep K G, Deng Y, et al. Nature,2016,534(7606),227.
8 Gludovatz B, Hohenwarter A, Catoor D, et al. Science,2014,345(6201),1153.
9 Liu W H, Lu Z P, He J Y, et al. Acta Materialia,2016,116,332.
10 Gao M C, Yeh J W, Liaw P K, et al. High-entropy alloys, Cham: Springer International Publishing, China,2016.
11 Li J, Yang X, Zhu R, et al. Metals,2014,4(4),597.
12 Zhang L, Thomas B G. ISIJ International,2003,43(3),271.
13 孔礼明.上海金属,2005,27(2),44.
14 石锋, 崔文芳, 王立军, 等.上海金属,2006,28(5),45.
15 Lei Z, Liu X, Wu Y, et al. Nature,2018,563(7732),546.
16 Feng H, Li H, Wu X, et al. Journal of Materials Science & Technology,2018,34(10),1781. |
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