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材料研究学报  2012, Vol. 26 Issue (5): 503-510    
  研究论文 本期目录 | 过刊浏览 |
ECAP过程中铁素体不锈钢的结构演化和力学性能
杨沐鑫1,2, 杨钢2,  刘正东2,  王昌2,  刘宝峰2,   黄崇湘3
1.昆明理工大学材料科学与工程学院 昆明 650093
2.钢铁研究总院结构材料研究所 北京 100081
3.四川大学建筑与环境学院 成都 610065
Microstructural Evolution and Mechanical Properties of 0Cr13 Ferritic Stainless Steel During the Process of Equal-Channel Angular Pressing
YANG Muxin YANG Gang LIU Zhengdong WANG Chang LIU Baofeng HUANG Chongxiang
1.Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093
2.Institute for Structural Materials, Central Iron and Steel Research Institute, Beijing 100081
3.College of Architecture and Environment, Sichuan University, Chengdu 610065
引用本文:

杨沐鑫 杨钢 刘正东 王昌 刘宝峰 黄崇湘. ECAP过程中铁素体不锈钢的结构演化和力学性能[J]. 材料研究学报, 2012, 26(5): 503-510.
. Microstructural Evolution and Mechanical Properties of 0Cr13 Ferritic Stainless Steel During the Process of Equal-Channel Angular Pressing[J]. Chinese Journal of Materials Research, 2012, 26(5): 503-510.

全文: PDF(1282 KB)  
摘要: 

研究了固溶态0Cr13铁素体不锈钢在室温1--4道次等径转角挤压(ECAP)过程中的结构演化和力学性能。结果表明: 0Cr13钢在挤压变形过程中晶粒的细化行为在介观上表现为在形变带作用下的晶粒分割;微观上则表现为位错分割机制下的晶粒碎化。四道次后形成了均匀的等轴超细晶结构, 平均晶粒尺寸约349 nm。室温拉伸和冲击测试结果表明, 实验钢在一道次EACP加工后强度提高, 韧塑性下降。后续更高道次挤压变形在使样品强度继续提高的同时, 冲击韧性也适当改善了。高道次(3、4道次)样品的冲击韧性大致可以恢复到挤压加工前的~30%。因晶粒细化和动态回复而导致的静力韧度提高和断裂机制转变, 是造成高道次样品冲击韧性改善的原因。

关键词 金属材料铁素体不锈钢等径转角挤压(ECAP)微观结构力学性能    
Abstract

Microstructural evolution and mechanical properties of a solution-treated 0Cr13 ferritic stainless during the process of equal-channel angular pressing (ECAP) for 1–4 passes at room temperature were investigated. The results showed that the microstructural refinement of 0Cr13 steel during ECAP process presented as the grain subdivision by the induced deformation bands in mesoscale, and the crystal disintegration through dislocation segmentation model in microscale. As a result, a homogeneous ultrafinegrained structure developed in the 4-pass ECAP sample, and the corresponding average grain size is about 349 nm. Tensile and impact tests at room temperature showed that the strength of the tested steel increased and its ductility decreased after ECAP deformation for a single pass. However, further pressings
(2nd, 3rd and 4th) resulted in a certain degree of improvement in impact toughness with enhancing strength simultaneously. The impact toughness of the multi-pass (3 and 4 passes) samples approximately returned to about 30% of the pre-pressing level. The enhanced static toughness and the changes in fracture mechanism resulted from grain refinement and dynamic recovery are responsible for the improved impact toughness of the multi-pass ECAP samples.

Key wordsmetallic materials    ferritic stainless steel    equal-channel angular pressing (ECAP)    microstructure    mechanical properties
收稿日期: 2012-07-09     
ZTFLH:  TG146.2  
基金资助:

国家自然科学基金项目50971045和11172187, 中央高校基本科研业务费0212SCU04A05资助项目。

1 WU Shiding, AN Xianghai, HAN Weizhong, QU Shen, ZHANG Zhefeng, Microstructure evolution and mechanical properties of fcc metallic materials subjected to equal channel angular pressing, Acta Metall. Sin., 46(3), 257(2010)

(吴世丁, 安祥海, 韩卫忠, 屈 伸, 张哲峰, 等通道转角挤压过程中fcc金属的微观结构演化与力学性能, 金属学报, 46(3), 257(2010))

2 C.X.Huang, K.Wang, S.D.Wu, Z.F.Zhang, G.Y.Li, S.X.Li, Deformation twinning in polycrystalline copper at room temperature and low strain rate, Acta Mater., 54 (3), 655(2006)

3 YU Yongning, Principles of Metallography (Beijing, Metallurgical Industry Press, 2000) p.428

(余永宁,  金属学原理  (北京, 冶金工业出版社, 2000) p.428)

4 B.Q.Han, E.J.Lavernia, F.A.Mohamed, Dislocation structure and deformation in iron processed by equal-channelangular pressing, Metall. Mater. Trans., 35A(4),1343(2004)

5 FANG Daran, DUAN Qiqiang, HUANG Chongxiang, WU Shiding, ZHANG Zhefeng, LI Jiajun, ZHAO Naiqin, Impact properties of Al-Cu alloy subjected to equal channel angular pressing, Acta Metall. Sin., 43(12), 1251(2007)

(房大然, 段启强, 黄崇湘, 吴世丁, 张哲峰, 李家俊, 赵乃勤, 等通道转角挤压Al-Cu合金的冲击性能,金属学报, 43(12), 1251(2007))

6 A.Ma, K.Suzuki, Y.Nishida, N.Saito, I.Shigematsu, M.Takagi, H.Iwata, A.Watazu, T.Imura, Impact toughness of an ultrafine-grained Al-11mass%Si alloy processed by rotary-die equal-channel angular pressing, Acta Mater., 53(1), 211(2005)

7 V.V.Stolyarov, R.Z.Valiev, Y.T.Zhu, Enhanced lowtemperature impact toughness of nanostructured Ti, Appl. Phys. Lett., 88(4), 041905(2006)

8 T. Fujita, Translated by DINGWenhua, ZHANG Xujiang, CHEN Yuzhang, Heat Treatment of Stainless Steels (Beijing, China Machine Press, 1983) p.30

(藤田辉夫 著; 丁文华, 张绪江, 陈玉璋译,  不锈钢的热处理  (北京, 机械工业出版社, 1983) p.30)

9 G.Yang, M.X.Yang, Z.D.Liu, C.Wang, Three-dimensional microstructures and tensile properties of pure iron during equal channel angular pressing, J. Iron Steel Res., Inter., 18 (12), 40 (2011)

10 G.Yang, C.X.Huang, C.Wang, L.Y.Zhang, C.Hu, Z.F.Zhang, S.D.Wu, Enhancement of mechanical properties of heat-resistant martensitic steel processed by equal channel angular pressing, Mater. Sci. Eng., A515(1–2), 199(2009)

11 GB 2106–1980, Metallic Materials, Method of Charpy Impact Test (V-notch) (Beijing, China Standard Press, 1980) p.3

(GB 2106--1980, 金属夏比(V型缺口)冲击试验方法 (北京, 中国标准出版社, 1980) p.3)

12 ZHONG Qunpeng, ZHAO Zihua, Fractography (Beijing, Higher Education Press, 2006) p.199

(钟群鹏, 赵子华,  断口学  (北京, 高等教育出版社, 2006) p.199)

13 V.M.Segal, Equal-channel angular extrusion: From macromechanics to structure formation, Mater. Sci. Eng., A27(1), 322(1999)

14 ASTM E 112–96, Standard Test Methods for Determining Average Grain Size (West Conshohocken, ASTM International, 2004) p.10

 

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