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Effect of pulsed current micro plasma arc welding process parameters on fusion zone grain size and ultimate tensile strength of Inconel 625 sheetsChalamalasetti Srinivasa Rao22. Department... size and ultimate tensile strength of pulsed current micro plasma arc welded Inconel 625 nickel alloy. Four factors, five levels, central composite rotatable design matrix is used to optimize......
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MMCs), Plasma arc in-situ welding of SiCp/Al MMCs was carried out using pure argon and argon-nitrogen mixture as plasma gases with 0.8 mm thick titanium filler-plate as in-situ material. The effect...;组织 中图分类号:TG 456 文献标识码:A Effect of nitrogen on plasma arc in-situ welding of SiCp/Al MMCs LEI Yu-cheng, LI Xian, CHEN Gang, ZHANG Jian-hui, CHENG Xiao-nong (School......
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J. Cent. South Univ. (2012) 19: 887-891 DOI: 10.1007/s11771-012-1088-0 Fabrication and plasma arc thermal shock resistance of HfB2-based ultra high temperature ceramics WENG Ling(翁凌)1, HAN Wen-bo(韩文波... and the thermal shock resistances were evaluated by plasma arc heater. The results indicate that the composite with AlN as sintering additive has a denser and finer microstructure than composite without......
and produces shallower welds, especially when argon is selected over helium. Plasma arc welding process can be used as an alternative of the GTAW process, allowing a high welding penetration. However, plasma arc welding is much more complex and presents greater initial and operational costs than the GTAW process. For the advantages of utility and economy, GTAW has been used extensively. Pulsed current......
Growth mechanism of Cu nanopowders prepared by anodic arc plasma
WEI Zhi-qiang(魏智强)1, 2, XIA Tian-dong(夏天东)2, MA Jun (马 军)1, DAI Jian-feng(戴剑锋)1,
FENG Wang-jun(冯旺军)1, WANG Qing (王 青)1, YAN Peng... and BET results.
Key words: anodic arc plasma; Cu nanopowders; nucleation; grain growth
, Dalian 116024, China)
Abstract: The behavior of nine kinds of familiar fluxes including oxide, chloride, fluoride in the AC-TIG and variable polarity plasma arc(VPPA) welding of magnesium were... the weld penetration, and the crystal grain size of the weld with flux is bigger than that without flux.
Key words: magnesium alloy; activating flux weld; AC-TIG welding; variable polarity plasma arc......镁合金的活性电弧焊接
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来源: 《中国有色金属学报2005年第6期》——张兆栋 刘黎明 沈勇 王来