Microstructure and fracture characteristics of spot-welded DP600 steel

被引：175
|
作者：
Ma, C. [1 ]
Chen, D. L. [1 ]
Bhole, S. D. [1 ]
Boudreau, G. [2 ]
Lee, A. [2 ]
Biro, E. [2 ]
机构：
[1] Ryerson Univ, Dept Mech & Ind Engn, Toronto, ON M5B 2K3, Canada
[2] Dofasco Ltd, Hamilton, ON L8N 3J5, Canada
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 485卷 / 1-2期
基金：
加拿大创新基金会; 加拿大自然科学与工程研究理事会;
关键词：
resistance spot welding; expulsion; microstructure; mechanical properties; fatigue; fracture mode; dual-phase steel;
D O I：
10.1016/j.msea.2007.08.010
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Microstructural characterization, microhardness tests, tensile shear tests, and fatigue tests of spot-welded hot dipped galvanized (HDG) DP600 steel were conducted. The effects of weld expulsion on the microstructural characteristics, mechanical properties, and fracture modes were investigated using optical microscopy, image analysis and scanning electron microscopy (SEM) together with energy dispersive X-ray spectroscopy (EDS). The hardness in the weld nugget was observed to be over two times higher than that in the base metal due to the formation of lath martensite. Fatigue tests showed a slightly lower fatigue limit for the joints with the expulsion. The crack initiation was observed to occur basically at the boundary of the weld nugget and at the interface between two sheets. The causes for the interfacial fracture (IF) were discussed in relation to the microstructure and weld parameters. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：334 / 346
页数：13
相关论文
共 50 条
  • [1] The effect of welding parameters on fracture toughness of resistance spot-welded galvanized DP600 automotive steel sheets
    Hayat, Fatih
    Sevim, Ibrahim
    INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2012, 58 (9-12): : 1043 - 1050
  • [2] The effect of welding parameters on fracture toughness of resistance spot-welded galvanized DP600 automotive steel sheets
    Fatih Hayat
    İbrahim Sevim
    The International Journal of Advanced Manufacturing Technology, 2012, 58 : 1043 - 1050
  • [3] Characterization of Microstructure and Mechanical Properties of Resistance Spot Welded DP600 Steel
    Ramazani, Ali
    Mukherjee, Krishnendu
    Abdurakhmanov, Aydemir
    Abbasi, Mahmoud
    Prahl, Ulrich
    METALS, 2015, 5 (03) : 1704 - 1716
  • [4] Failure mechanism of resistance spot-welded DP600 steel under high cycle fatigue
    Janardhan, Gorti
    Mukhopadhyay, Goutam
    Dutta, Krishna
    MATERIALS TODAY-PROCEEDINGS, 2022, 59 : 1666 - 1671
  • [5] INVESTIGATIONS OF MICROSTRUCTURE OF RESISTANCE SPOT-WELDED JOINTS MADE OF HSLA340 AND DP600 STEELS
    Ignasiak, A.
    Korzeniowski, M.
    Ambroziak, A.
    ARCHIVES OF METALLURGY AND MATERIALS, 2012, 57 (04) : 1081 - 1086
  • [6] LOAD CARRYING CAPACITY AND MICROSTRUCTURE OF RESISTANCE SPOT WELDED DUAL-PHASE (DP600) STEEL
    Ataya, Sabbah
    CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS 2014, 2014, : 297 - 304
  • [7] Microstructure and mechanical properties of laser welded DP600 steel joints
    Farabi, N.
    Chen, D.L.
    Li, J.
    Zhou, Y.
    Dong, S.J.
    Materials Science and Engineering: A, 2010, 527 (4-5) : 1215 - 1222
  • [8] Microstructure and mechanical properties of laser welded DP600 steel joints
    Farabi, N.
    Chen, D. L.
    Li, J.
    Zhou, Y.
    Dong, S. J.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (4-5): : 1215 - 1222
  • [9] Investigation of microstructure and mechanical properties of dissimilar electrical resistance spot welded TBF/DP600 steel sheets
    Aydin, Hakan
    Yilmaz, Imren Ozturk
    Bilici, Abdullah Yasin
    JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, 2022, 37 (02): : 609 - 624
  • [10] AN EXPERIMENTAL INVESTIGATION ON JOINTS QUALITY OF THE SPOT WELDED DP600
    Peng Zhang Jun Xie Zheng Ma Ying Wu Yuanxun Wang 1 (Department of Mechanics
    Acta Mechanica Solida Sinica, 2011, 24(S1) (S1) : 34 - 38
12345