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The Mechanism of ODS Alloy in-situ Alloying TIG Welding and Microstructure and Properties Analysis of Weld Joints |
LEI Yucheng, LI Menggang, CHENG Long |
School of material science and engineering of Jiangsu University, Zhenjiang 212013 |
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Cite this article:
LEI Yucheng LI Menggang CHENG Long. The Mechanism of ODS Alloy in-situ Alloying TIG Welding and Microstructure and Properties Analysis of Weld Joints. Chin J Mater Res, 2012, 26(4): 383-389.
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Abstract The behavior and mechanism of C and Y2O3 in the TIG welding process were mainly analyzed in this paper. In order to get compound and particles, with the ODS alloy MG956 in-situ alloying welded and C, Y2O3 and other alloy powder was filled in the weld. YAlO3, TiC, SiO2 and other particles whose size in 50-100 nanometer and 0.1-1 micrometer were generated and uniformly distributed in the weld. That filling C and Y2O3 in the welding process can refine the grains size and also improve the hardness and tensile strength of the weld-joints.
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Received: 08 May 2012
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Fund: Supported by National Nature Science Foundation of China No.51075191, Jiangsu University Science and Technology Innovation Team Program No.JD0805 and The Doctoral Innovation Program of Higher Education of Jiangsu Province No.cxzz11 0556. |
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