Microstructure of resistance spot weld ultra high strength steel Q&P980

Tao Liu; Hua Wang; Haifeng Yang; Chongjian Ke; Li Zhou; Hongyun Zhao

doi:10.1088/1757-899X/612/3/032183

Microstructure of resistance spot weld ultra high strength steel Q&P980

Tao Liu
, Hua Wang
, Haifeng Yang^*
, Chongjian Ke
, Li Zhou
, Hongyun Zhao

^*Corresponding author for this work

Automotive Engineering College
Harbin Institute of Technology Weihai
Shanghai Baosteel Research Institute

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

1mm thick Q&P980 steel plate was resistance spot welded and the appearance and microstructure of welded joint were investigated. The results show that Q&P980 steel achieves a better connection, When welding current is 12.5 kA, welding time is 10cycle, and electrode pressure is 2.4 kN. The joint can be divided into Fusion Zone (FZ), Coarse Grained (CG) HAZ, Fine Grained (FG) HAZ, and Inter Critical (IC) HAZ, Base Material (BM). The FZ undergoes recrystallization, and the HAZ undergoes a phase change due to thermal cycling and plastic deformation. FZ, CGHAZ and FGHAZ are completely austenitized and lath martensite is formed. ICHAZ generates tempered martensite.

Original language	English
Article number	032183
Journal	IOP Conference Series: Materials Science and Engineering
Volume	612
Issue number	3
DOIs	https://doi.org/10.1088/1757-899X/612/3/032183
State	Published - 21 Oct 2019
Externally published	Yes
Event	2019 6th International Conference on Advanced Composite Materials and Manufacturing Engineering, ACMME 2019 - Xishuangbanna, Yunnan, China Duration: 22 Jun 2019 → 23 Jun 2019

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10.1088/1757-899X/612/3/032183

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title = "Microstructure of resistance spot weld ultra high strength steel Q\&P980",

abstract = "1mm thick Q\&P980 steel plate was resistance spot welded and the appearance and microstructure of welded joint were investigated. The results show that Q\&P980 steel achieves a better connection, When welding current is 12.5 kA, welding time is 10cycle, and electrode pressure is 2.4 kN. The joint can be divided into Fusion Zone (FZ), Coarse Grained (CG) HAZ, Fine Grained (FG) HAZ, and Inter Critical (IC) HAZ, Base Material (BM). The FZ undergoes recrystallization, and the HAZ undergoes a phase change due to thermal cycling and plastic deformation. FZ, CGHAZ and FGHAZ are completely austenitized and lath martensite is formed. ICHAZ generates tempered martensite.",

author = "Tao Liu and Hua Wang and Haifeng Yang and Chongjian Ke and Li Zhou and Hongyun Zhao",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 2019 6th International Conference on Advanced Composite Materials and Manufacturing Engineering, ACMME 2019 ; Conference date: 22-06-2019 Through 23-06-2019",

year = "2019",

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doi = "10.1088/1757-899X/612/3/032183",

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TY - JOUR

T1 - Microstructure of resistance spot weld ultra high strength steel Q&P980

AU - Liu, Tao

AU - Wang, Hua

AU - Yang, Haifeng

AU - Ke, Chongjian

AU - Zhou, Li

AU - Zhao, Hongyun

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2019/10/21

Y1 - 2019/10/21

N2 - 1mm thick Q&P980 steel plate was resistance spot welded and the appearance and microstructure of welded joint were investigated. The results show that Q&P980 steel achieves a better connection, When welding current is 12.5 kA, welding time is 10cycle, and electrode pressure is 2.4 kN. The joint can be divided into Fusion Zone (FZ), Coarse Grained (CG) HAZ, Fine Grained (FG) HAZ, and Inter Critical (IC) HAZ, Base Material (BM). The FZ undergoes recrystallization, and the HAZ undergoes a phase change due to thermal cycling and plastic deformation. FZ, CGHAZ and FGHAZ are completely austenitized and lath martensite is formed. ICHAZ generates tempered martensite.

AB - 1mm thick Q&P980 steel plate was resistance spot welded and the appearance and microstructure of welded joint were investigated. The results show that Q&P980 steel achieves a better connection, When welding current is 12.5 kA, welding time is 10cycle, and electrode pressure is 2.4 kN. The joint can be divided into Fusion Zone (FZ), Coarse Grained (CG) HAZ, Fine Grained (FG) HAZ, and Inter Critical (IC) HAZ, Base Material (BM). The FZ undergoes recrystallization, and the HAZ undergoes a phase change due to thermal cycling and plastic deformation. FZ, CGHAZ and FGHAZ are completely austenitized and lath martensite is formed. ICHAZ generates tempered martensite.

UR - https://www.scopus.com/pages/publications/85074518643

U2 - 10.1088/1757-899X/612/3/032183

DO - 10.1088/1757-899X/612/3/032183

M3 - 会议文章

AN - SCOPUS:85074518643

SN - 1757-8981

VL - 612

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

IS - 3

M1 - 032183

T2 - 2019 6th International Conference on Advanced Composite Materials and Manufacturing Engineering, ACMME 2019

Y2 - 22 June 2019 through 23 June 2019

ER -

Microstructure of resistance spot weld ultra high strength steel Q&P980

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