Study of Microstructure and Properties of Non-Electric Welded Joints
来源期刊：材料保护2004年增刊第2期
论文作者：XU Xiao-ping HU Jun-zhi LUO Lin Ma Shi-ning
关键词：non-electricwelding; microstructure; properties;
摘 要：Non-electric welding, which combines the advantages of traditional welding and Self-propagating Hightemperature Synthesis (SHS), is a newly developed technology because of its simple process and no energy supplement during welding. In this paper, two pieces of 45 steel sheets were welded by Non-electric welding, and the properties of joints were studied. The microstructure and mechanical properties were investigated by SEM, EDAX, hardness tester and tensile tester.The interfaces of the joints and matrix show excellent metallurgical bonding, and the elements of joints have diffused into substrate. Welded joints have high mechanical properties. The bonding strength can reach 348 MPa, and the impact toughness is 44 J/cm2. Non-electric welding technology also can weld non-ferrous, and this technology especially suited to be used at the emergent maintenance of field.
XU Xiao-ping1，HU Jun-zhi1，LUO Lin1，Ma Shi-ning1
(1.Department of Material Science and Engineering, The Academy of Armored Forces Engineering, Beijing 100072, P. R. China)
摘要:Non-electric welding, which combines the advantages of traditional welding and Self-propagating Hightemperature Synthesis (SHS), is a newly developed technology because of its simple process and no energy supplement during welding. In this paper, two pieces of 45 steel sheets were welded by Non-electric welding, and the properties of joints were studied. The microstructure and mechanical properties were investigated by SEM, EDAX, hardness tester and tensile tester.The interfaces of the joints and matrix show excellent metallurgical bonding, and the elements of joints have diffused into substrate. Welded joints have high mechanical properties. The bonding strength can reach 348 MPa, and the impact toughness is 44 J/cm2. Non-electric welding technology also can weld non-ferrous, and this technology especially suited to be used at the emergent maintenance of field.
关键词:non-electricwelding; microstructure; properties;
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