Elements Distributions in Quenched and Tempered Cr-Mo-V-Ni Medium alloy Steel Characterized by Three Dimensional Atom Probe
ZUO Pengpeng1,2,3, HE Xuesong1,2,3, WU Xiaochun1,2,3, ZENG Yan1,2,3
1 State Key Laboratory of Advanced Special Steel, Shanghai 200072; 2 Shanghai Key Laboratory of Advanced Ferrometallurgy, Shanghai 200072; 3 School of Materials Science and Engineering, Shanghai University, Shanghai 200072
Abstract: Three dimensional atom probe (3DAP) combined with optical microstructure (OM) and scanning electron microscopy (SEM) were applied to characterize the spatial distributions of carbon atom and alloy elements concentration of tested steel tempered twice at 600 ℃ for 2 h after quenched at 1 030 ℃ holding 0.5 h, respectively. Simultaneously, the elements segregation in carbide and at carbide/matrix interface was also analyzed. The results indicated that the alloying elements Cr, Mn, Mo, Si, V and Ni atoms in the as-quenched specimen were almost no segregation, and element C was obviously sheet-like segregation attributed to auto-tempering and short-range diffusion of C atom. Co-segregation of C, Cr, Mo and V atoms occurred to form the M23C6 alloy carbide with a thickness about 10 nm in as-tempered specimen. The M23C6 carbide was wrapped by Si atom with a thin segregation layer, while the Si atom is surrounded by the Ni atom segregated at the outermost.
左鹏鹏,何雪松,吴晓春,曾艳,. 三维原子探针表征淬回火Cr-Mo-V-Ni中合金钢的元素分布*[J]. 材料导报编辑部, 2017, 31(22): 85-89.
ZUO Pengpeng, HE Xuesong, WU Xiaochun, ZENG Yan,. Elements Distributions in Quenched and Tempered Cr-Mo-V-Ni Medium alloy Steel Characterized by Three Dimensional Atom Probe. Materials Reports, 2017, 31(22): 85-89.
1 Ryoo D Y, Kang N, Kang C Y. Effect of Ni content on the tensile properties and strain-induced martensite transformation for 304 stainless steel[J]. Mater Sci Eng A, 2011,528(6):2277. 2 Cao Y, Wang Z D, Wu D, et al. Effect of Mo and Ni on continuous cooling transformation of low alloy wear-resistant steel[J]. Trans Mater Heat Treatment, 2011,32(5):74(in Chinese). 曹艺, 王昭东, 吴迪, 等. Mo和Ni对低合金耐磨钢连续冷却转变的影响[J]. 材料热处理学报, 2011,32(5):74. 3 Wang J X. Effect of Ni content on structure and property of stainless steel 0Cr17Ni4Cu4Nb[D].Chongqing: Chongqing University, 2010(in Chinese). 王剑星. Ni含量对0Cr17Ni4Cu4Nb不锈钢组织与性能的影响[D]. 重庆: 重庆大学, 2010. 4 上海大学. 高导热率大截面压铸模具钢及其制备和热处理方法: 中国, 201310241373.3[P]. 2016-01-20. 5 He X S. Effect of nickel on continuous cooling transformation,properties and microstructure of new type die-casting steels[D]. Shanghai: Shanghai University, 2016(in Chinese). 何雪松. 镍对新型压铸模具钢连续冷却转变行为及性能与组织的影响研究[D]. 上海: 上海大学, 2016. 6 Xie C, Wu X C, Min N,et al. Carbon segregation behavior of high-carbon high-alloy steel during deep cryogenic treatment using 3DAP[J]. Acta Metall Sin, 2015,51(3):325(in Chinese). 谢尘, 吴晓春, 闵娜, 等. 3DAP研究高碳高合金钢深冷处理过程的C偏聚行为[J]. 金属学报, 2015,51(3):325. 7 Liu Q D, Liu W Q, Wang Z M, et al. 3D atom probe characterization of alloy carbides in tempering martensite Ⅰ. nucleation[J]. Acta Metall Sin, 2009,45(11):1281(in Chinese). 刘庆冬, 刘文庆, 王泽民, 等. 回火马氏体中合金碳化物的3D原子探针表征Ⅰ.形核[J]. 金属学报, 2009,45(11): 1281. 8 Liu Q D, Peng J C, Liu W Q, et al. 3D atom probe characterization of alloy carbides in tempering martensite Ⅱ. growth[J]. Acta Metall Sin, 2009,45(11):1288(in Chinese). 刘庆冬, 彭剑超, 刘文庆, 等. 回火马氏体中合金碳化物的3D原子探针表征Ⅱ.长大[J]. 金属学报, 2009,45(11):1288. 9 Liu Q D, Chu Y L, Peng J C, et al. 3D atom probe characterization of alloy carbides in tempering martensite Ⅲ. coarsening[J]. Acta Metall Sin, 2009,45(11):1297(in Chinese). 刘庆冬, 褚于良, 彭剑超, 等. 回火马氏体中合金碳化物的3D原子探针表征Ⅲ.粗化[J]. 金属学报, 2009,45(11):1297. 10 Wang Z M, Liu Q D, Liu W Q. Influence of tempering temperature on precipitates in Nb-Mo-V micro-alloyed steel[J]. Trans Mater Heat Treatment, 2009,30(3):123(in Chinese). 王泽民, 刘庆冬, 刘文庆. 回火温度对Nb-Mo-V微合金钢中的析出物的影响[J]. 材料热处理学报,2009,30(3):123. 11 Liu Q D, Chu Y L, Wang Z M, et al. 3D atom probe characterization of alloying elements partitioning in cementite of Nb-V microalloying steel[J]. Acta Metall Sin, 2008,44(11):1281(in Chinese). 刘庆冬, 褚于良, 王泽民, 等. Nb-V微合金钢中渗碳体周围元素分布的三维原子探针表征[J]. 金属学报, 2008,44(11):1281. 12 Zhou Q C. Effect of silicon on H13 type hot work die steel[D].Shanghai: Shanghai University, 2012(in Chinese). 周青春. 硅在H13型热作模具钢中作用的研究[D]. 上海: 上海大学, 2012. 13 Kapoor R, Kumar L, Batra I S. A dilatometric study of the continuous heating transformations in 18 wt.% Ni maraging steel of grade 350[J]. Mater Sci Eng A, 2003,352(1):318. 14 Hu X, Li L, Wu X, et al. Coarsening behavior of M23C6 carbides after ageing or thermal fatigue in AISI H13 steel with niobium[J]. Int J Fatigue, 2006,28(3):175.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2017, Vol. 31 
