再结晶分布对316L不锈钢力学性能的影响

Abstract
Figure/Table
References
Related Citation (14)

Download: PDF (740 KB) HTML (0 KB)
Export: BibTeX | EndNote (RIS)

Abstract Two different distributions of recrystalline grains were obtained on a cold-rolled 316L stainless steel through isochronal annealing (IA) and electromagnetic induction heating (EMIH), respectively. The microstructure and mechanical properties of the alloys after isothermal annealing and electromagnetic induction heating were observed and tested. The effects of recrystallization distribution on the mechanical properties of 316L stainless steel were studied. The results show that, the recrystalline grains are uniformly distributed in the IA sample. While a gradient distribution is obtained in the EMIH sample where the volume fraction and grain size of recrystalline grains are declined with depths increased. There are same volume fraction of recrystalline grains and similar strength-ductility synergy in the IA and EMIH samples. The difference in the distribution of recrystalline grains has no significant effects on the mechanical properties of 316L stainless steel. The tensile ductility of the annealed 316L stainless steel is mainly depended on the network formed by the recrystallization and nanotwins. The deformation ability of the network is insensitive to the distribution of the recrystalline grains. Therefore, the effects of the recrystallization distribution on the mechanical properties are suppressed in 316L stainless steel.

Key words： recrystallization distribution mechanical property 316L stainless steel inverse gradient nanograined structure electromagnetic induction heating

Received: 16 February 2018 Published: 12 July 2019

ZTFLH:

TG142.1/2

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LU Jiaxin
	CHEN Zhakun
	FANG Tiehui

Cite this article:

LU Jiaxin,CHEN Zhakun,FANG Tiehui. Effects of distribution of recrystalline grains on mechanical properties of 316L stainless steel[J]. Materials Science and Engineering of Powder Metallurgy, 2018, 23(5): 475-481.

URL:

http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2018/V23/I5/475

[1] GLEITER H.Nanocrystalline materials[J]. Prog Mater Sci, 1989, 33(4): 223-315.
[2] MEYERS M A, MISHRA A, BENSON D J.Mechanical properties of nanocrystalline materials[J]. Prog Mater Sci, 2006, 51(4): 427-556.
[3] VALIEV R Z, ISLAMGALIEV R K, ALEXANDROV I V.Bulk nanostructured materials from severe plastic deformation[J]. Prog Mater Sci, 2000, 45(2): 103-189.
[4] ZHU Yuntian, LIAO Xiaozhou.Nanostructured metals-retaining ductility[J]. Nat Mater, 2004, 3(6): 351-352.
[5] KOCH C C, YOUSSEF K M, SCATTERGOOD R O, et al.Breakthroughs in optimization of mechanical properties of nanostructural metals and alloys[J]. Adv Eng Mater, 2005, 7(9): 787-794.
[6] CHEN Ji, LU Lei, LU Ke.Hardness and strain rate sensitivity of nanocrystalline Cu[J]. Scr Mater, 2006, 54(11): 1913-1918.
[7] WANG Yinmin, CHEN Mingwei, ZHOU Fenghua, et al.High tensile ductility in a nanostructured metal[J]. Nature, 2002, 419(6910): 912-915.
[8] YAN Fengkai, LIU Guozhong, TAO Nairong, et al.Strength and ductility of 316L austenitic stainless steel strengthened by nano-scale twin bundles[J]. Acta Mater, 2012, 60(3): 1059-1071.
[9] WU Xiaolei, YANG Muxin, YUAN Fuping, et al.Heterogeneous lamella structure unites ultrafine-grain strength with coarse-grain ductility[J]. PNAS, 2015, 112(47): 14501-14505.
[10] LI Yusheng, ZHANG Yong, TAO Nairong, et al.Effect of thermal annealing on mechanical properties of a nanostructured copper prepared by means of dynamic plastic deformation[J]. Scr Mater, 2008, 59: 475-478.
[11] LIN Fengxiang, ZHANG Yubing, TAO Nairong, et al.Effects of heterogeneity on recrystallization kinetics of nanocrystalline copper prepared by dynamic plastic deformation[J]. Acta Mater, 2014, 72(15): 252-261.
[12] FANG Tiehui, LI Wenli, TAO Nairong, et al.Revealing extraordinary intrinsic tensile plasticity in gradient nano-grained copper[J]. Science, 2011, 331(6024): 1587-1590.
[13] HUANG Haiwei, WANG Zhenbo, LU Jian, et al.Fatigue behaviors of AISI 316L stainless steel with a gradient nanostructured surface layer[J]. Acta Mater, 2015, 87(1): 150-160.
[14] VINOGRADOV A, YASNIKOV I S, MATSUYAMA H, et al.Controlling strength and ductility: Dislocation-based model of necking instability and its verification for ultrafine grain 316L steel[J]. Acta Mater, 2016, 106: 295-303.
[15] LU K.Making strong nanomaterials ductile with gradients[J]. Science, 2014, 345(6203): 1455-1456.
[16] WU Xiaolei, JIANG Ping, CHEN Liu, et al.Extraordinary strain hardening by gradient structure[J]. Proceedings of the National Academy of Science of the United Stales of America, 2014, 111(20): 7197-7201.
[17] YAN Fengkai, TAO Nairong, ARCHIE F, et al.Deformation mechanisms in an austenitic single-phase duplex microstructured steel with nanotwinned grains[J]. Acta Mater, 2014, 81: 487-500.
[18] LU Lei, CHEN Xianhua, HUANG Xiaoxu, et al.Revealing the maximum strength in nanotwinned copper[J]. Science, 2009, 323(5914): 607-610.
[19] LU Ke, LU Lei, SURESH S.Strengthening materials by engineering coherent internal boundaries at the nanoscale[J]. Science, 2009, 324(5925): 349-352.
[20] CHRISTIAN J W, MAHAJAN S.Deformation twinning[J]. Prog Mater Sci, 1995, 39(1/2): 1-157.
[21] LU Lei, SCHWAIGER R, SHAN Zhiwei, et al.Nano-sized twins induce high rate sensitivity of flow stress in pure copper[J]. Acta Mater, 2005, 53(7): 2169-2179.