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

Previous Articles     Next Articles

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

WANG Wen-quan1,2, SHANG Yan-geng3, LI Xiu-juan3, WANG Chun-sheng1, ZHANG Gui-lan3   

  1. 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

PDF (PC)

543

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

CLC Number: 

  • TG401
[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.
[1] JIANG Qiu-yue,YANG Hai-feng,TAN Cai-wang. Strengthening properties of welded joints of 22MnB5 super high strength steel [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(6): 1806-1810.
[2] HU Zhi-qing, YAN Ting-xu, LI Hong-jie, LYU Zhen-hua, LIAO Wei, LIU Geng. Effect of cryogenic treatment on punch-shearing performance of aluminum alloy sheet [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1524-1530.
[3] ZHENG Xiao-yi, SUN Da-qian, LI Xin, DU Gui-gang, XIN Wei-da, REN Zhen-an. Microstructure and properties of cladded Al-Nb layers reinforced by NbAl3 [J]. Journal of Jilin University(Engineering and Technology Edition), 2018, 48(5): 1531-1536.
[4] ZHUNG Wei-min, ZHAO Wen-zeng, XIE Dong-xuan, LI Bing. Joint performance analysis on connection of ultrahigh-strength steel and aluminum alloy with hot riveting [J]. 吉林大学学报(工学版), 2018, 48(4): 1016-1022.
[5] QIU Xiao-ming, WANG Yin-xue, YAO Han-wei, FANG Xue-qing, XING Fei. Multi-objective optimization of resistance spot welding parameters for DP1180/DP590 using grey relational analysis based Taguchi [J]. 吉林大学学报(工学版), 2018, 48(4): 1147-1152.
[6] CHEN Jun-fu, GUAN Zhi-ping, YANG Chang-hai, NIU Xiao-ling, JIANG Zhen-tao, Song Yu-quan. Comparison of strain ranges and mechanical properties of metal rods under tension and torsion tests [J]. 吉林大学学报(工学版), 2018, 48(4): 1153-1160.
[7] LIANG Xiao-bo, CAI Zhong-yi, GAO Peng-fei. Numerical simulation and experiment of cylindrical forming of sandwich composite panel [J]. 吉林大学学报(工学版), 2018, 48(3): 828-834.
[8] LIU Zi-wu, LI Jian-feng. Erosion damage and evaluation of remanufacturing cladding layer for impeller metals FV520B [J]. 吉林大学学报(工学版), 2018, 48(3): 835-844.
[9] GUAN Ji-shi, SHI Yao-wu, QIU Jian-wen, SHAN Ze-biao, SHI Hong-wei. New algorithm to estimate characteristic exponent of α-stable distribution [J]. 吉林大学学报(工学版), 2018, 48(2): 618-624.
[10] ZHAO Yu-guang, YANG Xue-hui, XU Xiao-feng, ZHANG Yang-yang, NING Yu-heng. Effects of Al-10Sr modifiers with different states, modification temperature and holding time on microstructure of ZL114A alloy [J]. 吉林大学学报(工学版), 2018, 48(1): 212-220.
[11] LIU Chun-guo, LIU Wei-dong, DENG Yu-shan. Effect of multi-point punch active loading path on the stretch-forming of sheet [J]. 吉林大学学报(工学版), 2018, 48(1): 221-228.
[12] ZHANG Zhi-qiang, LIU Cong-hao, HE Dong-ye, LI Xiang-ji, LI Ji-xuan. Effect of hot stamping process of boron steel on shape precision based on performance gradient distribution [J]. 吉林大学学报(工学版), 2017, 47(6): 1829-1833.
[13] LYU Meng-meng, GU Zheng-wei, XU Hong, LI Xin. Process optimization of hot stamping for anti-collision beam with ultra high strength [J]. 吉林大学学报(工学版), 2017, 47(6): 1834-1841.
[14] XING Hai-yan, GE Hua, LI Si-qi, YANG Wen-guang, SUN Xiao-jun. Hidden defect metal magnetic memory identification for welded joints based on fuzzy membership and maximum likelihood estimation [J]. 吉林大学学报(工学版), 2017, 47(6): 1854-1860.
[15] GU Xiao-yan, LIU Ya-jun, SUN Da-qian, XU Feng, MENG Ling-shan, GAO Shuai. Microstructures and mechanical properties of transient liquid phase diffusion bonded S355 steel/6005A aluminum alloy joint [J]. 吉林大学学报(工学版), 2017, 47(5): 1534-1541.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] HUANG Jian-kang, HE Cui-cui, SHI Yu, FAN Ding. Thermodynamic analysis of Al-Fe intermetallic compounds formed by dissimilar joining of aluminum and galvanized steel[J]. 吉林大学学报(工学版), 2014, 44(4): 1037 -1041 .
[2] XU Tao, LIU Guang-jie, GE Hai-chao, ZHANG Wei, YU Zheng-lei. Modeling heat source of dynamic welding with local coordinate curve path[J]. 吉林大学学报(工学版), 2014, 44(6): 1704 -1709 .
[3] LUO Hai-tao, ZHOU Wei-jia, WANG Hong-guang, WU Jia-feng. Mechanical analysis of friction stir welding robot under typical working conditions[J]. 吉林大学学报(工学版), 2015, 45(3): 884 -891 .
[4] YANG Yue, ZHOU Lei-lei. Effect of micro-arc oxidation treatment on corrosion resistance of aluminum friction stir welding welds[J]. 吉林大学学报(工学版), 2016, 46(2): 511 -515 .
[5] CHU Liang, SUN Cheng-wei, GUO Jian-hua, ZHAO Di, LI Wen-hui. Evaluation method of braking energy recovery based on wheel cylinder pressure[J]. 吉林大学学报(工学版), 2018, 48(2): 349 -354 .
[6] HE Xiang-kun, JI Xue-wu, YANG Kai-ming, WU Jian, LIU Ya-hui. Tire slip control based on integrated-electro-hydraulic braking system[J]. 吉林大学学报(工学版), 2018, 48(2): 364 -372 .
[7] ZHANG Tian-shi, SONG Dong-jian, GAO Qing, WANG Guo-hua, YAN Zhen-min, SONG Wei. Construction of power battery liquid cooling system for electric vehicle and simulation of its working process[J]. 吉林大学学报(工学版), 2018, 48(2): 387 -397 .
[8] YUAN Chao-chun, ZHANG Long-fei, CHEN Long, HE You-guo, FAN Xing-gen. Braking performance of active collision avoidance system based on road identification[J]. 吉林大学学报(工学版), 2018, 48(2): 407 -414 .
[9] XU Hong-feng, GAO Shuang-shuang, ZHENG Qi-ming, ZHANG Kun. Hybrid dynamic lane operation at signalized intersection[J]. 吉林大学学报(工学版), 2018, 48(2): 430 -439 .
[10] SU Shu-jie, HE Lu. Transient dynamic congestion evacuation model of pedestrian at walk traffic planning crossroads[J]. 吉林大学学报(工学版), 2018, 48(2): 440 -447 .
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd