Effects of Filler Metal Composition on Inclusions and Inclusion Defects for ER NiCrFe-7 Weldments

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	Effects of Filler Metal Composition on Inclusions and Inclusion Defects for ER NiCrFe-7 Weldments
	W. L. Mo; S. P. Lu; D. Z. Li; Y. Y. Li
	2013
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	29 期号:5 页码:458-466
摘要	The effects of filler metal (FM) composition on inclusions and inclusion defects for ER NiCrFe-7 weldments have been investigated and analyzed. Results show that as Al, Ti content in FM increases from 0.14 wt% Al, 0.30 wt% Ti to 0.42 wt% Al, 0.92 wt% Ti, the Al, Ti reduction will increase during welding. Inclusion defects (point-like defects named by welding workers) are prone to form in the high Al, Ti content weldments. Inclusion defects with Mg, Ca, Al, and Ti as major metallic elements have been found on the surface and interior of the weldments, as Al, Ti content in FM is over 0.29 wt% Al, 0.62 wt% Ti. Less Ti content in FM cannot prevent ductility-dip-cracking (DDC) through producing enough intragranular precipitates and lessening intergranular M23C6 precipitates. Nb can be used to replace Ti to reduce the sensitivity of the DDC in the NiCrFe-7 alloy weldments.
部门归属	[mo, wenlin ; 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	Filler Metal Composition Er Nicrfe-7 Inclusions Inclusion Defects Ductility-dip-cracking Ductility-dip Cracking Multipass Weld Metal High-temperature Behavior Grain-boundary Character Ni-based Alloys Heat-treatment Part Ii Microcracking Susceptibility Intergranular Corrosion Mechanical-properties
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/321006/71412
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. L. Mo,S. P. Lu,D. Z. Li,et al. Effects of Filler Metal Composition on Inclusions and Inclusion Defects for ER NiCrFe-7 Weldments[J]. Journal of Materials Science & Technology,2013,29(5):458-466.
APA	W. L. Mo,S. P. Lu,D. Z. Li,&Y. Y. Li.(2013).Effects of Filler Metal Composition on Inclusions and Inclusion Defects for ER NiCrFe-7 Weldments.Journal of Materials Science & Technology,29(5),458-466.
MLA	W. L. Mo,et al."Effects of Filler Metal Composition on Inclusions and Inclusion Defects for ER NiCrFe-7 Weldments".Journal of Materials Science & Technology 29.5(2013):458-466.