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Title:
Effects of laser power density on static and dynamic mechanical properties of dissimilar stainless steel welded joints
Author: Wei YP(魏延鹏); Li MH; Yu G(虞钢); Wu XQ(吴先前); Huang CG(黄晨光); Duan ZP(段祝平)
Source: ACTA MECHANICA SINICA
Issued Date: 2012-10-01
Volume: 28, Issue:5, Pages:1334-1339
Abstract: The mechanical properties of laser welded joints under impact loadings such as explosion and car crash etc. are critical for the engineering designs. The hardness, static and dynamic mechanical properties of AISI304 and AISI316 L dissimilar stainless steel welded joints by CO2 laser were experimentally studied. The dynamic strain-stress curves at the strain rate around 10(3) s(-1) were obtained by the split Hopkinson tensile bar (SHTB). The static mechanical properties of the welded joints have little changes with the laser power density and all fracture occurs at 316 L side. However, the strain rate sensitivity has a strong dependence on laser power density. The value of strain rate factor decreases with the increase of laser power density. The welded joint which may be applied for the impact loading can be obtained by reducing the laser power density in the case of welding quality assurance.
Keyword: Laser welding ; Dynamic mechanics ; Strain rate ; Power density ; Industry ; Sheets
Language: 英语
Indexed Type: SCI ; EI ; CSCD
Corresponding Author: Wei, YP ; Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China.
Correspondent Email: weiyanpeng@imech.ac.cn
Related URLs: 查看原文
WOS ID: WOS:000310884300013
ISSN: 0567-7718
Rank: [Wei, Yan-Peng;Wu, Xian-Qian; Huang, Chen-Guang] Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China; [Li, Mao-Hui] PLA, Gen Logist Dept, Quartermaster Equipment Res Inst, Beijing 100010, Peoples R China; [Yu, Gang] Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China; [Duan, Zhu-Ping] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
Subject: 固体力学::制造工艺力学
Department: LMFS冲击与耦合效应(LHO)
Classification: 二类
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/46651
Appears in Collections:非线性力学国家重点实验室_期刊论文
流固耦合系统力学重点实验室(2012-)_期刊论文

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Recommended Citation:
Wei YP,Li MH,Yu G,et al. Effects of laser power density on static and dynamic mechanical properties of dissimilar stainless steel welded joints[J]. ACTA MECHANICA SINICA,2012-10-01,28(5):1334-1339.
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