加载方向对TRIP双相不锈钢板带拉伸性能的影响

doi:10.13228/j.boyuan.issn0449-749x.20190239

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (4748 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract To clarify the effect of loading direction on the tensile properties of a TRIP-assisted duplex stainless steel sheet,the tensile deformation behavior of the test sheet at loading directions of 0°,45°and 90° with rolling direction (RD) were investigated by tensile test. Microstructural characteristics,especially the kinetics of strain-induced martensitic transformation (SIMT) were comparatively analyzed through EBSD,TEM,XRD,etc. The results showed that the tensile properties exhibited a strong anisotropy. The tensile strength and the ductility increased in the order of 0°,45°and 90°,but the yield strength was not sensitive to the loading direction. Microstructural analysis showed that the SIMT occurred in the metastable austenite which caused the transformation induced plasticity (TRIP) with a mechanisms of γ→ε→α'. Loading at the loading direction of 0° was in favor of TRIP,while the SIMT was suppressed at the loading direction of 90° due to the strain partitioning between austenite and ferrite. Moreover,the quantitative models of the kinetics of SIMT at different loading directions were established,respectively,whereby the content of strain-induced martensite at different deformation stages could be predicted.

Key words： duplex stainless steel TRIP effect loading direction strain induced martensite tensile deformation

Received: 31 May 2019

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	MA Xiao-cong
	AN Zi-jun
	CHEN Lei
	MEI Rui-xue
	HAO Shuo
	PENG Cheng

Cite this article:

MA Xiao-cong,AN Zi-jun,CHEN Lei等. Influence of loading direction on tensile properties of a TRIP-assisted duplex stainless steel sheet[J]. Iron and Steel, 2020, 55(2): 112-118.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190239 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I2/112

[1] 高祥明,裴明德,李国平. 冷轧硬化对超级双相不锈钢S32750析出相的影响[J]. 钢铁,2019,54(9):94. (GAO Xiang-ming,PEI Ming-de,LI Guo-ping. Influence of cold rolling on precipitation of S32750 super duplex stainless steel[J]. Iron and Steel,2019,54(9):94.)
[2] Herrera C,Ponge D,Raabe D. Design of a novel Mn-based 1 GPa duplex stainless TRIP steel with 60% ductility by a reduction of austenite stability[J]. Acta Materialia,2011,59(11):4653.
[3] 江来珠,张伟,王治宇. 经济型双相不锈钢的研发进展[J]. 钢铁研究学报,2013,25(4):1.(JIANG Lai-zhu,ZHANG Wei,WANG Zhi-yu. Research and development of lean duplex stainless steels[J]. Journal of Iron and Steel Research,2013,25(4):1.)
[4] 陈雷,张英杰,李飞,等. 固溶温度对节约型双相不锈钢TRIP/TWIP行为的影响[J]. 钢铁,2017,52(4):55.(CHEN Lei,ZHANG Ying-jie,LI Fei,et al. Effect of solution temperature on TRIP/TWIP behavior of a lean duplex stainless steel[J]. Iron and Steel,2017,52(4):55.)
[5] Choi J Y,Ji J H,Hwang S W,et al. Effects of nitrogen content on TRIP of Fe-20Cr-5Mn-xN duplex stainless steel[J]. Materials Science and Engineering A,2012,534:673.
[6] Tsuchida N,Yamaguchi Y,Morimoto Y,et al. Effects of temperature and strain rate on TRIP effect in SUS301L metastable austenitic stainless steel[J]. ISIJ International,2013,53(10):1881.
[7] Kang J Y,Kim H,Kim K,et al. Effect of austenitic texture on tensile behavior of lean duplex stainless steel with transformation induced plasticity (TRIP)[J]. Materials Science and Engineering A,2017,681:114.
[8] Choi J Y,Lee J,Lee K,et al. Effects of the strain rate on the tensile properties of a TRIP-aided duplex stainless steel[J]. Materials Science and Engineering:A,2016,666:280.
[9] GUO Bao-feng,ZHANG Qi-fei,CHEN Lei,et al. Influence of annealing temperature on the strain-hardening behavior of a lean duplex stainless steel[J]. Materials Science and Engineering:A,2018,722:216.
[10] ZHAO Yan,ZHANG Wei-na,LIU Xin,et al. Development of TRIP-aided lean duplex stainless steel by twin-roll strip casting and its deformation mechanism[J]. Metallurgical and Materials Transactions A, 2016, 47(12):6292.
[11] LIANG Ju-hua,ZHAO Zheng-zhi,ZHANG Cai-hua,et al. Microstructure evolution and mechanical properties influenced by austenitizing temperature in aluminum-alloyed TRIP-aided steel[J]. Journal of Iron and Steel Research,International,2017,24(11):1115.
[12] 陈雷,李飞,张英杰,等. 一种TRIP/TWIP型双相不锈钢的相图及其亚稳奥氏体组织稳定性计算[J]. 燕山大学学报,2016,40(1):35.(CHEN Lei,LI Fei,ZHANG Ying-jie,et al. Calculation for the phase diagram and stability of metastable austenite in a TRIP/TWIP duplex stainless steel [J]. Journal of Yanshan University,2016,40(1):35.)
[13] Yen H W,Ooi S W,Eizadjou M,et al. Role of stress-assisted martensite in the design of strong ultrafine-grained duplex steels[J]. Acta Materialia,2015,82:100.
[14] Iza-mendia A,Pinol-juez A,Urcola J J,et al. Microstructural and mechanical behavior of a duplex stainless steel under hot working conditions[J]. Metallurgical and Materials Transactions A,1998,29(12):2975.
[15] Spigarelli S,Mehtedi M E,Ricci P,et al. Constitutive equations for prediction of the flow behaviour of duplex stainless steels[J]. Materials Science and Engineering:A,2010,527(16/17):4218.
[16] 季培蓓,周立初,周雪峰,等. 冷拉拔珠光体钢丝的力学性能各向异性研究[J]. 金属学报,2018,54(4):494.(JI Pei-bei,ZHOU Li-chu,ZHOU Xue-feng,et al. Study on anisotropic mechanical properties of cold drawn pearlitic steel wire[J]. Acta Metallurgica Sinica,2018,54(4):494.)