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Effects of laser power density on static and dynamic mechanical properties of dissimilar stainless steel welded joints
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); Wei, YP; Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China.
2012-10-01
发表期刊ACTA MECHANICA SINICA
卷号28期号:5页码:1334-1339
ISSN0567-7718
摘要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.
关键词Laser Welding Dynamic Mechanics Strain Rate Power Density Industry Sheets
学科领域制造工艺力学
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收录类别SCI ; EI ; CSCD
语种英语
WOS记录号WOS:000310884300013
项目资助者The project was supported by the National Natural Science Foundation of China (10832011).
课题组名称LMFS冲击与耦合效应(LHO)
论文分区二类
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/46651
专题流固耦合系统力学重点实验室
非线性力学国家重点实验室
通讯作者Wei, YP; Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China.
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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,2012,28(5):1334-1339.
APA Wei YP.,Li MH.,Yu G.,Wu XQ.,Huang CG.,...&Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China..(2012).Effects of laser power density on static and dynamic mechanical properties of dissimilar stainless steel welded joints.ACTA MECHANICA SINICA,28(5),1334-1339.
MLA Wei YP,et al."Effects of laser power density on static and dynamic mechanical properties of dissimilar stainless steel welded joints".ACTA MECHANICA SINICA 28.5(2012):1334-1339.
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