2011 Fiscal Year Final Research Report
Micro-resistance seam welding of bulk metallic glasses
| Project/Area Number |
21560750
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Material processing/treatments
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| Research Institution | Osaka University |
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Principal Investigator |
FUKUMOTO Shinji 大阪大学, 大学院・工学研究科, 准教授 (60275310)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Atsushi 兵庫県立大学, 工学研究科, 教授 (70220449)
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| Project Period (FY) |
2009 – 2011
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| Keywords | マイクロ接合 / 抵抗溶接 / 金属ガラス / 微細組織 / 界面現象 |
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| Research Abstract |
Zr based bulk metallic glasses has superior mechanical properties such as high strength and low Young' s modulus. It is necessary to weld metallic glasses to structural alloys to manufacture attractive devices. In the present study, Zr based metallic glass was welded to austenitic stainless steel by micro-resistance spot and seam welding. The microstructural development at the weld interface was investigated, which revealed the welding mechanism. It has been clarified that the weld interfacial structure influenced the weld interfacial strength. Moreover, a novel method considering equipotential surface in the workpieces has been proposed to estimate the current path area at the faying interface.
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