Influence of Phosphorus on Hot Deformation of IN718 Alloy
LYU Wenlong1,2, JIA Dan1,2,*, ZHANG Anwen3, LI Shaowei1,2, ZHAO Shuwei4, XIN Xin1,2, LIU Enze1,2
1 School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China; 2 Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; 3 Wuxi Huatian Gas Turbine Co.,Ltd., Wuxi 214000, Jiangsu, China; 4 School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China
Abstract: The hot deformation behaviors of two kinds of IN718 alloys with varying P contents were studied by tensile tests under the deformation tempe-rature range of 920—1 000 ℃ and strain rate range of 5×10-4—10-2 s-1. The effects of P on microstructure evolution and dynamic recrystallization behaviors were characterized by means of SEM, EBSD and TEM. The results indicate that the addition of P significantly alters both the quantity and morphology of δ-phase during hot deformation, thereby affecting dynamic recrystallization. At deformation temperatures within the δ-phase precipitation range, the addition of P reduces the amount of δ-phase and suppresses its growth, which promotes the nucleation of dynamically recrystallized grains. However, when the deformation temperature increases to the level where δ-phase precipitation no longer occurs, P tends to segregate at grain boundaries. Therefore, the segregation of P atoms could inhibit grain boundary migration through solid-solution dragging effects, thereby obstructing the nucleation and growth of dynamically recrystallized grains and consequently reducing the dynamic recrystallization fraction.
1 Kulawik K, Buffat P A, Kruk A, et al. Materials Characterization, 2015, 100, 74. 2 Zhang H, Li C, Guo Q, et al. Scripta Materialia, 2019, 164, 66. 3 Trosch T, Strössner J, Yölkl R, et al. Materials Letters, 2016, 164, 428. 4 Hosseini E, Popovich V A. Additive Manufacturing, 2019, 30, 10087. 5 Xiao X, Zhao H, Wang C, et al. Acta Metallurgica Sinica-English Letters, 2013, 49(4), 421. 6 Wang C, Guo Y A, Guo J, et al. Materials & Design, 2015, 88(25), 790. 7 Li N, Sun W, Xu Y, et al. Materials Letters, 2006, 60(17), 2232. 8 Jia D, Sun W R, Xu D S, et al. Materials Science and Engineering A, 2019, 35(9), 45. 9 Sun W R, Chen G S, Luo H J, et al. Journal of Iron and Steel Research, 2011, 23(S2), 201(in Chinese). 孙文儒, 陈国胜, 罗恒军, 等. 钢铁研究学报, 2011, 23(S2), 201. 10 Wang Z, Zhang W, Li S, et al. Materials Science and Engineering A, 2023, 881, 145386. 11 Li S, Liu F, Si T, et al. Materials Characterization, 2023, 200, 112895. 12 Yang S, Sun W, Wang J, et al. Materials Science and Engineering A, 2011, 27(6), 539. 13 Wang C S, Wu Y S, Li H, et al. Materials Letters, 2022, 313, 131727. 14 Guan S, Cui C, Yuan Y, et al. Materials Science and Engineering A, 2016, 662, 275. 15 Liu X L, Dong J X, Tang B, et al. Materials Science and Engineering A, 1999, 270(2), 190. 16 Zhang S, Zhang A W, Chang L, et al. Materials Science and Engineering A, 2019, 761, 137981. 17 Kim S I, Choi S H, Lee Y. Materials Science and Engineering A, 2005, 406(1-2), 125. 18 Stewart G R, Jonas J J, Montheillet F. ISIJ International, 2004, 44(9), 1581. 19 Lin Y C, Deng J, Jiang Y Q, et al. Materials & Design, 2014, 55, 949. 20 Jia D, Sun W R, Xu D S, et al. Journal of Alloys and Compounds, 2019, 787, 196. 21 Wu Y, Qin X, Wang C, et al. Materials Science and Engineering A, 2019, 768, 138454. 22 Sun W R, Guo S R, Lee J H, et al. Materials Science and Engineering A, 1998, 247(1-2), 173. 23 Sun W R, Guo S R, Lu D Z, et al. Metallurgical and Materials Transactions A, 1997, 28(3), 649. 24 He D G, Lin Y C, Jiang X Y, et al. Materials & Design, 2018, 156, 262. 25 Lin Y C, He D G, Chen M S, et al. Materials & Design, 2016, 97, 13. 26 Alam T, Felfer P J, Chaturvedi M, et al. Metallurgical and Materials Transactions A, 2012, 43(7), 2183. 27 Wang M, Du J H, Deng Q, et al. Materials Science and Engineering A, 2015, 626, 382. 28 Kai W, Hong S I, Chun Y, et al. Journal of Iron and Steel Research International, 2011, 18(1), 61. 29 Pan T A, Lian Y J, Tzeng Y C, et al. Materials Science and Engineering A, 2022, 74(10), 3877.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2026, Vol. 40 
