Characteristics of AZ31 Mg alloy joint using automatic TIG welding

IMR OpenIR

	Characteristics of AZ31 Mg alloy joint using automatic TIG welding
	Liu, Hong-tao; Zhou, Ji-xue; Zhao, Dong-qing; Liu, Yun-teng; Wu, Jian-hua; Yang, Yuan-sheng; Ma, Bai-chang; Zhuang, Hai-hua; Liu, HT (reprint author), Shandong Acad Sci, Adv Mat Inst, Shandong Key Lab High Strength Lightweight Metall, Jinan 250014, Peoples R China.
	2017
发表期刊	INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN	1674-4799
卷号	24 期号:1 页码:102-108
摘要	The automatic tungsten-inert gas welding (ATIGW) of AZ31 Mg alloys was performed using a six-axis robot. The evolution of the microstructure and texture of the AZ31 auto-welded joints was studied by optical microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and electron backscatter diffraction. The ATIGW process resulted in coarse recrystallized grains in the heat affected zone (HAZ) and epitaxial growth of columnar grains in the fusion zone (FZ). Substantial changes of texture between the base material (BM) and the FZ were detected. The {0002} basal plane in the BM was largely parallel to the sheet rolling plane, whereas the c-axis of the crystal lattice in the FZ inclined approximately 25A degrees with respect to the welding direction. The maximum pole density increased from 9.45 in the BM to 12.9 in the FZ. The microhardness distribution, tensile properties, and fracture features of the AZ31 auto-welded joints were also investigated.; The automatic tungsten-inert gas welding (ATIGW) of AZ31 Mg alloys was performed using a six-axis robot. The evolution of the microstructure and texture of the AZ31 auto-welded joints was studied by optical microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and electron backscatter diffraction. The ATIGW process resulted in coarse recrystallized grains in the heat affected zone (HAZ) and epitaxial growth of columnar grains in the fusion zone (FZ). Substantial changes of texture between the base material (BM) and the FZ were detected. The {0002} basal plane in the BM was largely parallel to the sheet rolling plane, whereas the c-axis of the crystal lattice in the FZ inclined approximately 25A degrees with respect to the welding direction. The maximum pole density increased from 9.45 in the BM to 12.9 in the FZ. The microhardness distribution, tensile properties, and fracture features of the AZ31 auto-welded joints were also investigated.
部门归属	[liu, hong-tao ; zhou, ji-xue ; wu, jian-hua ; yang, yuan-sheng] shandong acad sci, adv mat inst, shandong key lab high strength lightweight metall, jinan 250014, peoples r china ; [zhao, dong-qing ; liu, yun-teng ; ma, bai-chang ; zhuang, hai-hua] shandong acad sci, adv mat inst, shandong engn res ctr lightweight automobiles mag, jinan 250014, peoples r china ; [yang, yuan-sheng] chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词	Magnesium Alloys Tig Welding Microstructure Texture Microhardness
学科领域	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
资助者	National Key Research and Development Plan of China [2016YFB0701200, 2016YFB0301105]; Natural Science Foundation of Shandong Province, China [ZR2015EQ019, BS2015CL016, ZR2015YL007]; Youth Foundation of Shandong Academy of Sciences, China [2016QN015]
收录类别	SCI
语种	英语
WOS记录号	WOS:000393034800012
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/78374
专题	中国科学院金属研究所
通讯作者	Liu, HT (reprint author), Shandong Acad Sci, Adv Mat Inst, Shandong Key Lab High Strength Lightweight Metall, Jinan 250014, Peoples R China.
推荐引用方式 GB/T 7714	Liu, Hong-tao,Zhou, Ji-xue,Zhao, Dong-qing,et al. Characteristics of AZ31 Mg alloy joint using automatic TIG welding[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2017,24(1):102-108.
APA	Liu, Hong-tao.,Zhou, Ji-xue.,Zhao, Dong-qing.,Liu, Yun-teng.,Wu, Jian-hua.,...&Liu, HT .(2017).Characteristics of AZ31 Mg alloy joint using automatic TIG welding.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,24(1),102-108.
MLA	Liu, Hong-tao,et al."Characteristics of AZ31 Mg alloy joint using automatic TIG welding".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 24.1(2017):102-108.