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AZ31 마그네슘합금 레이저 용접부의 미세조직 및 미소경도의 분포에 관한 연구
최영환(Y.H. Choi),이목영(M.Y. Lee),최시훈(S.-H. Choi) 한국레이저가공학회 2012 한국레이저가공학회지 Vol.15 No.3
The laser weld of AZ31 magnesium alloy was characterized with OM, EBSD and micros vickers hardness tester in experiment. EBSD analysis and micro-hardness measurements were carried out at the three regions (Equiaxed Zone, Columnar Dendrite Zone, Base Metal) of the welded AZ31Mg alloy sheets. The magnesium alloy show the rectangular shape bead in laser weld. EBSD analysis revealed that the three regions show the heterogeneous distribution of grain size and microtexture. Micro-hardness measurement also revealed that the heterogeneous distribution of microstructure contributed to the heterogeneous micro-hardness distribution in the three regions.
TIG 용접한 AZ31Mg 합금 판재의 기계적 성질에 미치는 미세조직의 영향
정아란(A. Jeong),김은영(E.-Y. Kim),함나연(N. Y. Ham),이목영(M. Y. Lee),최시훈(S.-H. Choi) 한국소성가공학회 2011 한국소성가공학회 학술대회 논문집 Vol.2011 No.5
In order to understand the effect of microstructure on mechanical properties of TIG welded AZ31 Mg alloy sheets, EBSD analysis and microhardness measurements were carried out at the three regions (Fusion Zone, Heat Affected Zone, Base Materials). EBSD analysis revealed the heterogeneous distribution of grain size and microtexture in the three regions. Microhardness measurement also provided that how grain size and micro texture contribute to the microhardness distribution in the three regions.