激光焊接650 MPa相变诱发塑性钢的组织与性能

›› 2012, Vol. 42 ›› Issue (05): 1203-1207.

激光焊接650 MPa相变诱发塑性钢的组织与性能

王文权^1,2, 商延赓³, 李秀娟³, 王春生¹, 张桂兰³

1. 长春轨道客车股份有限公司博士后工作站,长春 130062;
2. 吉林大学材料科学与工程学院,长春 130022;
3. 吉林大学工程仿生教育部重点实验室,长春 130022

收稿日期:2011-07-08 出版日期:2012-09-01 发布日期:2012-09-01
通讯作者: 商延赓(1964-),男,工程师.研究方向:材料连接与工程仿生.E-mail:shangyangeng@163.com E-mail:shangyangeng@163.com
基金资助:
吉林省科技厅科技支撑计划项目(20116006).

Microstructure and property of laser welded 650 MPa transformation induced plasticity steel sheet

WANG Wen-quan^1,2, SHANG Yan-geng³, LI Xiu-juan³, WANG Chun-sheng¹, ZHANG Gui-lan³

1. Postdoctoral Workstation, Changchun Railway Vehicles Co., Ltd., Changchun 130062, China;
2. College of Materials Science and Engineering, Jilin University, Changchun 130022, China;
3. Key Laboratory of Bionic Engineering of Ministry of Education, Jilin University, Changchun 130022, China

Received:2011-07-08 Online:2012-09-01 Published:2012-09-01

摘要/Abstract

摘要： 采用固体Nd: YAG激光器焊接拉伸强度级别为650 MPa、厚度为1.2 mm的相变诱发塑性钢(TRIP)薄板,利用光学显微镜和电子显微镜研究了其不同焊接速度下对接焊缝的形貌和组织特点。测试了接头的硬度和抗拉强度,借助杯凸试验对比研究了激光焊接接头和母材的成形能力,并分析了焊接速度对接头组织、性能的影响。研究表明:TRIP钢的相组成主要是大量铁素体、贝氏体和少量的残余奥氏体;激光焊缝金属则主要由马氏体构成。焊缝金属或焊接热影响区的近缝区具有最高的硬度。焊缝金属的屈服强度和抗拉强度在垂直于焊缝方向与母材基本相同,但在平行于焊缝方向明显高于母材。与母材相比,激光焊接TRIP钢薄板的冲压成型能力明显下降。

关键词: 材料合成与加工工艺, 激光焊接, 相变诱发塑性钢, 组织, 性能

Abstract: Microstructures and mechanical properties of Nd: YAG laser welded transformation induced plasticity (TRIP) steel with tensile strength 650 MPa and 1.2 mm thickness were studied. The hardness and tensile strength of butt welding joint were investigated by optical and electronic microscopies under different welding speeds. The formability of raw material and welding joint were tested with Erichsen experiment. The study showed that the welded metal mainly consists of martensite which is different from the original TRIP or parent metal, which is composed of ferrite matrix plus bainite and a little residual austenite. Therefore, the welded metal or the heat affected zone has the maximum hardness for the whole welded joint. The yield strength (YS) and tensile strength (TS) of the welded specimens tested perpendicular to the weld line were almost equal to those of the parent metal. But the YS and TS of the welded specimens tested parallel with the weld line were obviously higher than those of the parent metal. The stamping formability of laser welded TRIP steel sheet was obviously decreased compared with that of the parent metal.

Key words: materials synthesis and processing technology, laser welding, transformation induced plasticity steel, microstructure, property

中图分类号:

TG401

王文权, 商延赓, 李秀娟, 王春生, 张桂兰. 激光焊接650 MPa相变诱发塑性钢的组织与性能[J]. , 2012, 42(05): 1203-1207.

WANG Wen-quan, SHANG Yan-geng, LI Xiu-juan, WANG Chun-sheng, ZHANG Gui-lan. Microstructure and property of laser welded 650 MPa transformation induced plasticity steel sheet[J]. , 2012, 42(05): 1203-1207.

参考文献

[1] Srivastava A K, Bhattacharjee D, Jha G, et al. Microstructural and mechanical characterization of C-Mn-Al-Si cold-rolled TRIP-aided steel[J]. Materials Science and Engineering A, 2007, 445(2): 549-557.
[2] 侯晓英,许云波,吴迪. 热轧钒微合金TRIP钢的微观组织和力学性能[J]. 材料研究学报,2011,25(2):158-164. Hou Xiao-ying, Xu Yun-bo, Wu Di. Microstructure and mechanical properties of 980 MPa grade hot rolled v-microalloyed TRIP steel[J]. Chinese Journal of Material Research, 2011,25(2):158-164.
[3] 熊自柳,蔡庆伍,江海涛. TRIP钢中奥氏体的力学稳定性研究[J]. 材料工程,2011(3):11-16. Xiong Zi-liu, Cai Qing-wu, Jiang Hai-tao. Research on mechanical stability of austenite in TRIP steel[J]. Materials Engineering, 2011(3):11-16.
[4] Liao Y C, Yu M H. Effects of laser beam energy and incident angle on the pulse laser welding of stainless steel thin sheet[J]. Journal of Materials Processing Technology, 2007, 190:102-108.
[5] Alberg H, Bergland D. Comparison of plastic, viscoplastic, and creep models when modeling welding and stress relief heat treatment[J]. Computer Methods in Applied Mechanics and Engineering, 2003, 192: 5189-5208.
[6] Jimenez E, Vandijk N H, Zhao L. Martensitic transformation of individual grains in low-alloyed TRIP steels[J]. Scripta Materialia, 2007, 56:421-424.
[7] Zaeffer S, Ohlert J, Bleck W. A study of microstructure, transformation mechanisms and correlation between microstructure and mechanical properties of a low alloyed TRIP steel[J]. Acta Materialia, 2004, 52: 276-278.
[8] Ribolla A, Damoulis G L, Batalha G F. The use of Nd:YAG laser weld for large scale volume assembly of automotive body in white[J]. Journal of Materials Processing Technology, 2005, 164:1120-1127.

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