Strengthening Effect of W Element in New Nickel-based Powder Metallurgy Superalloys
JIA Jian1,2, LUO Junpeng3, ZHANG Haopeng1,2, YAN Ting1,2, HOU Qiong1,2, ZHANG Yiwen1,2,*
1 High Temperature Material Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China 2 Gaona Aero Material Co.,Ltd., Beijing 100081, China 3 Aecc South Industry Company Limited, Zhuzhou 412002, Hunan, China
Abstract: Three experimental high-strength Ni-based PM superalloy ingots with different W contents (4.1wt%, 6.1wt%, and 8.1wt%) were prepared by the process of vacuum induction melting (VIM) + electrode induction melting gas atomization (EIGA) + hot isostatic pressing (HIP) + heat treatment (HT). Combined with the software JMatPro 6.5 and SEM, EBSD, and XRD, the effects of W content on the grain size, annealing twin boundaries, the γ′ phase and the lattice mismatch were analyzed, and the effect of W content on the tensile properties at different temperatures were also calculated and studied. The results indicated that the stacking fault energy of the γ matrix decreased significantly with the increase of W content, resulting in the increase of Σ3 annealing twin boundaries;W transformed the shape of primary γ′ from cuboid to solid state dendrite, but had little impact on the total amount of γ′ phase and secondary and tertiary γ′ phases; the degree of lattice distortion caused by W entering γ phase is greater than that of γ′ phase, resulting in a decrease of the γ′/γ lattice mismatch; W contributed to improving the tensile strength at room temperature and 650—800 ℃, but slightly reduced the ductility. W had better strength above 750 ℃, and it was widely added in the fourth generation PM superalloys. W mainly played the role of solid solution strengthening, γ/γ′ coherent strain strengthening, and grain boundary strengthening. Among them, the contribution of solid solution strengthening was relatively low and W mainly strengthened the γ matrix. The effect of γ matrix solution strengthening and γ/γ′ coherent strain strengthening decreased with the increase of W content, and the grain boundary strengthening effect was the largest when W content was 6.1%. The total contribution of solid solution strengthening, γ/γ′ coherent strain strengthening and grain boundary strengthening was less than 50% of the measured yield strength at room temperature, which indicated that the alloy was mainly strengthened by the γ′ phase.
1 Smythe J. Advanced Materials and Processes, 2008, 166(11), 52. 2 Zhang Y W, Liu J T, Jia J, et al. Powder Metallurgy Industry, 2022, 32(6), 150 (in Chinese). 张义文, 刘建涛, 贾建, 等. 粉末冶金工业, 2022, 32(6), 150. 3 Zhang Y W, Liu J T, Jia J, et al. Powder Metallurgy Industry, 2022, 32(1), 1 (in Chinese). 张义文, 刘建涛, 贾建, 等. 粉末冶金工业, 2022, 32(1), 1. 4 Bai J M, Liu J T, Jia J, et al. Acta Metallurgica Sinica, 2023, 59(9), 1230 (in Chinese). 白佳铭, 刘建涛, 贾建, 等. 金属学报, 2023, 59(9), 1230. 5 Guo J T. Materials science and engineering for superalloys(1st), Science Press, China, 2008 (in Chinese). 郭建亭. 高温合金材料学(1版), 科学出版社, 2008. 6 Wang L, Yang G, Qian T C. Journal of Iron and Steel Research, 2014, 26(2), 41 (in Chinese). 王鲁, 杨钢, 钱天才. 钢铁研究学报, 2014, 26(2), 41. 7 Tian S G, Xia D, Li T, et al. Journal of Aeronautical Materials, 2008, 28(4), 12 (in Chinese). 田素贵, 夏丹, 李唐, 等. 航空材料学报, 2008, 28(4), 12. 8 Wang L, Yang G, Lei T, et al. Chinese Journal of Rare Metals, 2016, 40(2), 117 (in Chinese). 汪力, 杨钢, 雷霆, 等. 稀有金属, 2016, 40(2), 117. 9 Sun Y J, Shang Y, Sun L. Hot Working Technology, 2013, 42(18), 53 (in Chinese). 孙跃军, 尚勇, 孙雷. 热加工工艺, 2013, 42(18), 53. 10 Johnson W R, Barrett C R, Nix W D. Metallurgical and Materials Tran-sactions B, 1972, 3(4), 963. 11 Yang N S, Wei Y H, Fu H Z, et al. Acta Metallurgica Sinica, 1981, 17(1), 44 (in Chinese). 杨枬森, 魏育环, 傅宏镇, 等. 金属学报, 1981, 17(1), 44. 12 Yang N S, Wei Y H, Fu H Z, et al. Iron and Steel, 1984, 19(11), 28 (in Chinese). 杨枬森, 魏育环, 傅宏镇, 等. 钢铁, 1984, 19(11), 28. 13 Meng Q E, Xi X R. Acta Metallurgica Sinica, 1987, 23(4), A344 (in Chinese). 孟庆恩, 郗秀荣. 金属学报, 1987, 23(4), A344. 14 Yu X F, Tian S G, Yang J H. Journal of Materials and Metallurgy, 2004, 3(4), 294 (in Chinese). 于兴福, 田素贵, 杨景红. 材料与冶金学报, 2004, 3(4), 294. 15 Yu X F, Tian S G, Du H Q, et al. Rare Metal Materials and Engineering, 2007, 36(12), 2148 (in Chinese). 于兴福, 田素贵, 杜洪强, 等. 稀有金属材料与工程, 2007, 36(12), 2148. 16 Darolia R, Lahrman D F, Field R D. In:Proceedings of the Sixth International Symposium on Superalloys. Warrendale, PA, USA, 1988, pp.255. 17 Tian S G, Du H Q, Wang C T, et al. Journal of Aeronautical Materials, 2006, 26(3), 16 (in Chinese). 田素贵, 杜洪强, 王春涛, 等. 航空材料学报, 2006, 26(3), 16. 18 Fan L H, Li J L, Sun J D, et al. Acta Metallurgica Sinica, 2023, https://kns. cnki. net/kcms/detail/21. 1139. tg. 20230315. 1312. 136. html (in Chinese). 凡莉花, 李金临, 孙九栋, 等.金属学报, https://kns. cnki. net/kcms/detail/21. 1139. tg. 20230315. 1312. 136. html. 19 Wang B, Zhang J, Pan X J, et al. Acta Metallurgica Sinica, 2017, 53(3), 298 (in Chinese). 王博, 张军, 潘雪娇, 等. 金属学报, 2017, 53(3), 298. 20 Zhao H B, Feng W, Zhou T J. Special Casting & Nonferrous Alloys, 2017, 37(5), 482 (in Chinese). 赵会彬, 冯微, 周同金. 特种铸造及有色合金, 2017, 37(5), 482. 21 Watanabe T. Journal of Materials Science, 2011, 46(12), 4095. 22 Shi Y, Zhang Y Y, Liu F, et al. Hot Working Technology, 2020, 49(16), 32 (in Chinese). 师瑀, 张莹莹, 刘峰, 等. 热加工工艺, 2020, 49(16), 32. 23 Yu X X, Wang C Y. Acta Materialia, 2010, 57(19), 5914. 24 Shang S L, Zacherl C L, Fang H Z, et al. Journal of Physics:Condensed Matter, 2012, 24(50), 505403. 25 Liu S L, Ye X X, Jiang L, et al. Materials Science and Engineering: A, 2016, 655, 269. 26 Fan X, Guo Z, Wang X, et al. Materials Characterization, 2018, 139, 382. 27 Van Sluytman J S, Pollock T M. Acta Materialia, 2012, 60(4), 1771. 28 Zhang J C, Lu F, Zhang C, et al. Vacuum, 2022, 197, 110863. 29 Sudbrack C K, Isheim D, Noebe R D, et al. Microscopy and Microanalysis, 2004, 10(3), 355. 30 Sudbrack C K, Ziebell T D, Noebe R D, et al. Acta Materialia, 2008, 56(3), 448. 31 Goodfellow A J, Galindo-Nava E I, Schwalbe C, et al. Materials and Design, 2019, 173, 107760. 32 Chen Y, Fang Q H, Luo S H, et al. International Journal of Plasticity, 2022, 155, 103333. 33 Nemoto M, Tian W, Sano T. Journal de Physique III, 1991, 1, 1099. 34 Roth H A, Davis C L, Thomson R C. Metallurgical and Materials Transactions A, 1997, 28(6), 1329. 35 Gypen L A, Deruyttere A. Journal of Materials Science, 1977, 12(5), 1028. 36 Galindo-Nava E I, Connor L D, Rae C M F. Acta Materialia, 2015, 98, 377. 37 Wang Q, Li Z, Pang S J, et al. Entropy, 2018, 20, 878. 38 Bhowal P R, Wright E F, Raymond E L. Metallurgical and Materials Transactions A, 1990, 21(6), 1709. 39 Tan L M, Li Y P, Deng W K, et al. Journal of Alloys and Compounds, 2019, 804, 322.
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2024, Vol. 38 
