Effect of Structural Parameters of Double Shielded TIG Torch on the Fusion Zone Profile for 0Cr13Ni5Mo Martensitic Stainless Steel

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	Effect of Structural Parameters of Double Shielded TIG Torch on the Fusion Zone Profile for 0Cr13Ni5Mo Martensitic Stainless Steel
	D. J. Li; S. P. Lu; D. Z. Li; Y. Y. Li
	2014
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	30 期号:9 页码:922-927
摘要	The effects of double shielded TIG (tungsten inert gas) torch's structural parameters, including the flow rate ratio between the inner and outer layers of gas and the extended length of the electrode (abbreviated as ELE in this work), on the fusion zone profile have been investigated for 0Cr13Ni5Mo martensitic stainless steel. Results show that the double shielded TIG process yields relatively high penetration of the weld pool in a broad range of the structural parameters. ELE over 3 mm is too large and causes adverse reactions on the protection of electrode. The outer gas with relatively high flow rate or the outer layer with high oxygen content is conducive to the oxygen dissolved into the arc, which results in the oxidation of the weld pool surface and the electrode tip. The double shielded TIG welded metal was tested and presented good impact property.
部门归属	[li, dongjie ; lu, shanping ; li, dianzhong ; li, yiyi] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; lu, sp (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; shplu@imr.ac.cn
关键词	Structural Parameters Flow Rate Electrode Extended Length Impact Energy Weld Shape Deep Penetration Gas Protection Fluxes Metal
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73263
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. J. Li,S. P. Lu,D. Z. Li,et al. Effect of Structural Parameters of Double Shielded TIG Torch on the Fusion Zone Profile for 0Cr13Ni5Mo Martensitic Stainless Steel[J]. Journal of Materials Science & Technology,2014,30(9):922-927.
APA	D. J. Li,S. P. Lu,D. Z. Li,&Y. Y. Li.(2014).Effect of Structural Parameters of Double Shielded TIG Torch on the Fusion Zone Profile for 0Cr13Ni5Mo Martensitic Stainless Steel.Journal of Materials Science & Technology,30(9),922-927.
MLA	D. J. Li,et al."Effect of Structural Parameters of Double Shielded TIG Torch on the Fusion Zone Profile for 0Cr13Ni5Mo Martensitic Stainless Steel".Journal of Materials Science & Technology 30.9(2014):922-927.