Powder microstructure and overlay coating property of NiCrAlY alloy

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	Powder microstructure and overlay coating property of NiCrAlY alloy; Powder microstructure and overlay coating property of NiCrAlY alloy
	X. C. Chang; J. Q. Wang; Y. Y. Hao; W. L. Hou; Z. Q. Hu
	1998 ; 1998
发表期刊	Journal of Materials Science & Technology ; Journal of Materials Science & Technology
ISSN	1005-0302 ; 1005-0302
卷号	14 期号:4 页码:308-312
摘要	The microstructural features of NiCrAlY alloy powders with different particle size fractions and their effects on the overlay coating property have been investigated. It is shown that the finer (20 similar to 30 mu m) powder particles experience rapid recalescence and heat extraction to the surroundings resulting in microcellular structure, whereas the coarser (40 similar to 50 mu m) powder particles exhibit a coarse cellular and dendritic mixed structure because of recalescence followed by slow cooling. In addition, it is also indicated that the finer the powder particle sizes, the higher the mechanical property and the metallurgical thermal stability of the overlay coatings deposited by as-atomized powders, which is presumably attributed to the formation of dense fine grain structure and oxide layer for the fine size fraction of the powders.; The microstructural features of NiCrAlY alloy powders with different particle size fractions and their effects on the overlay coating property have been investigated. It is shown that the finer (20 similar to 30 mu m) powder particles experience rapid recalescence and heat extraction to the surroundings resulting in microcellular structure, whereas the coarser (40 similar to 50 mu m) powder particles exhibit a coarse cellular and dendritic mixed structure because of recalescence followed by slow cooling. In addition, it is also indicated that the finer the powder particle sizes, the higher the mechanical property and the metallurgical thermal stability of the overlay coatings deposited by as-atomized powders, which is presumably attributed to the formation of dense fine grain structure and oxide layer for the fine size fraction of the powders.
部门归属	acad sinica, inst met res, state key lab rsa, shenyang 110015, peoples r china.;wang, jq (reprint author), acad sinica, inst met res, state key lab rsa, shenyang 110015, peoples r china ; acad sinica, inst met res, state key lab rsa, shenyang 110015, peoples r china.;wang, jq (reprint author), acad sinica, inst met res, state key lab rsa, shenyang 110015, peoples r china
URL	查看原文 ; 查看原文
WOS记录号	WOS:000074996700004 ; WOS:000074996700004
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37629
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. C. Chang,J. Q. Wang,Y. Y. Hao,et al. Powder microstructure and overlay coating property of NiCrAlY alloy, Powder microstructure and overlay coating property of NiCrAlY alloy[J]. Journal of Materials Science & Technology, Journal of Materials Science & Technology,1998, 1998,14, 14(4):308-312, 308-312.
APA	X. C. Chang,J. Q. Wang,Y. Y. Hao,W. L. Hou,&Z. Q. Hu.(1998).Powder microstructure and overlay coating property of NiCrAlY alloy.Journal of Materials Science & Technology,14(4),308-312.
MLA	X. C. Chang,et al."Powder microstructure and overlay coating property of NiCrAlY alloy".Journal of Materials Science & Technology 14.4(1998):308-312.