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
ISSN1674-4799
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
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.
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