| METALS AND METAL MATRIX COMPOSITES |
|
|
|
|
|
| Effect of Al and Mo Content on the Microstructures and Tensile Property of FeCrAlMo Alloys |
| WANG Tiejun1,2, QIN Wei1,2, CHEN Yongqing3, YAN Yingjie3, CAO Rui3, LIANG Chen1,2, DONG Hao1,2, CHE Hongyan1,2
|
1 Advanced Technology & Materials Limited Company, China Iron & Steel Research Institute Group, Beijing 100081, China
2 Engineering and Technology Research Center of Hot Isostatic Pressing, Zhuozhou 072750, China
3 State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou 730050, China |
|
|
|
|
Abstract FeCrAl alloys were widely used in elevated temperature and oxidising environment due to its outstanding oxidation resistance and mechanical property at high temperature. Two FeCrAl alloys with different chemical composition, Fe-22Cr-3Al-3Mo and Fe-22Cr-2Al-5Mo, produced by hot isostatic pressing (HIP), were investigated in this paper. The microstructures of powders of two alloys were characterized. And the microstructures and tensile strength of as-HIP samples of two alloys were characterized and tested. The results showed that the tensile strength and plasticity of Fe-22Cr-3Al-3Mo alloy were both higher than Fe-22Cr-2Al-5Mo alloy at 20 ℃, but they were both lower than Fe-22Cr-2Al-5Mo alloy at 500 ℃. The precipitation in the Fe-22Cr-3Al-3Mo alloy were mainly fine AlN phase and a small amount of Cr-rich phase in the grains and grain boundaries. The precipitation in the Fe-22Cr-2Al-5Mo alloy was mainly large size oxycarbides of Cr-rich phase. With the decreasing of Al content and the increasing of Mo content, more large sized Cr-rich phases were precipitated in the grain boundaries, which resulted in the poor plasticity of Fe-22Cr-2Al-5Mo at 20 ℃.
|
|
Published: 29 May 2020
|
|
|
| Fund:This work was financially supported by the National Natural Science Foundation of China (51961024, 51761027). |
| About author:: Tiejun Wang, a well-known expert in the powder metallurgy field with rich experience and remarkable achievements, Ph.D., professor of senior engineer, currently is the VP of Advanced Technology and Materials, Ltd.(AT&M). The editorial committee member of Powder Metallurgy Technology and Powder Metallurgy Industry. The member of AT&M Technical Innovation Committee. Engaged in the research, development, application, promotion and industrialization of refractory metal materials, metal-ceramic composites and hot isostatic pressing (HIP) technology for many years. Commended as the “Beijing science and technology new star” in 2004. Hosted 10 and participated in 15 national enterprise technological innovation projects. Won twice the second prize of the Science and Technology of China Nonferrous Metals Industry Award, three times the third prize of Metallurgy Science and Technology Award, once the third prize of Beijing Science and Technology Award, once the second prize of Hebei Province Metallurgy Science and Technology Award, and once the third prize of China Nuclear Energy Industry Science and Technology Award. 33 patents Authorized. Awarded as the “Outstanding Young Expert of Central Enterprises”, the “Outstanding Communist Party Member of Central Enterprise”, the “Outstanding Manager” of CISRI, and the “Model Worker” of CISRI.Hongyan Che, a senior engineer in hot isostatic pre-ssing field with rich experience and remarkable achievements, Ph. D., currently is the assistant general mana-ger of PM devision of Advanced Technology and Mate-rials, Ltd.(AT&M). The member of AT&M Technical Innovation Committee. Engaged in the research, deve-lopment, application, promotion and industrialization of hot isostatic pressing (HIP) technology for many years. Hosted 6 and participated in 3 national enterprise technological innovation projects. Won the third prize of China Nuclear Energy Industry Science and Technology Award, and the first prize of Baoding science and technology progress award, all rank first. 5 patents authorized, more than 40 papers published. Awarded as “an Advanced Individual for Meritorious Service by Women” of CISRI, “ Innovative Talents” of Hebei Province. |
|
|
1 Wang Z D, Gong Y S. Electrothermic alloy, Chemical Industry Press, China,2006(in Chinese).
王振东,宫元生.电热合金,化学工业出版社,2006.
2 Birks N, Meier G H, Pettit F S. Introduction to the high-temperature oxidation of metals, Higher Education Press, China,2010(in Chinese).
Birks N, Meier G H, Pettit F S. 金属高温氧化导论,高等教育出版社,2010.
3 Klueh R L, Shingledecker J P, Swindeman R W, et al. Journal of Nuc-lear Materials,2005,341(2-3),103.
4 Nagini M, Vijay R, Rajulapati K V, et al. Materials Science and Engineering: A,2017,708,451.
5 Deng Z Q, Liu J H, He Y, et al. Chinese Journal of Engineering,2017,39(5),710(in Chinese).
邓振强,刘建华,何杨,等.工程科学学报,2017,39(5),710.
6 Kobayashi S, Takasugi T. Scripta Materialia,2010,63(11),1104.
7 Li W, Lu S, Hu Q M, et al. Computational Materials Science,2013,74(6),101.
8 Liu T, Wang C, Shen H, et al. Corrosion Science,2013,76,310.
9 Du G W, Cai J M, Lin S. Journal of University of Science and Technology Beijing,1998,20(4),354(in Chinese).
杜国维,蔡家敏,林实.北京科技大学学报,1998,20(4),354.
10 Wu Y, Xie J G, Zeng K L, et al. Nonferrous Metals,1999,51(4),83(in Chinese).
武英,谢建刚,曾克里,等.有色金属,1999,55(4),83.
11 Jönsson B, Berglund R, Magnusson J, et al. Materials Science Forum,2004,461-464,455.
12 Chen Z H, Chen D. Principles of modern powder metallurgy, Chemical Industry Press, China,2013(in Chinese).
陈振华,陈鼎.现代粉末冶金原理,化学工业出版社,2013.
13 Jönsson B, Lu Q, Chandrasekaran D, et al. Oxidation of Metals,2013,79,29.
14 Kang X F. Ferritic stainless steel, Metallurgical Industry Press, China,2012(in Chinese).
康喜范.铁素体不锈钢,冶金工业出版社,2012.
15 Che H Y, Chen F, Dong H, et al. Corrosion & Protection,2016,37(11),892(in Chinese).
车洪艳,陈峰,董浩,等.腐蚀与防护,2016,37(11),892.
16 Pan Z W, Wang Z F, Sun B M, et al. Foundry,1996(5),13(in Chinese).
潘正伟,王执福,孙本茂,等.铸造,1996(5),13.
17 Zhang H, Wang J J, Liu C M. Materials Science ＆ Technology,2010(3),22(in Chinese).
张辉,王建军,刘春明.材料科学与工艺,2010(3),22. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
2020, Vol. 34 
