Microstructure and age hardening of C276 alloy coatings

doi:10.1016/j.surfcoat.2015.02.030

CORC > 兰州理工大学 > 兰州理工大学

	Microstructure and age hardening of C276 alloy coatings
	Mulligan, C. P.1; Wei, R.2; Yang, G.3,4; Zheng, P.3; Deng, R.3; Gall, D.3
刊名	SURFACE & COATINGS TECHNOLOGY
	2015-05-25
卷号	270 页码:299-304
关键词	C276 PEMS Corrosion-resistant alloy X-ray diffraction PVD
ISSN号	0257-8972
DOI	10.1016/j.surfcoat.2015.02.030
英文摘要	C276 alloy layers were deposited on 4140 steel substrates by plasma enhanced magnetron sputtering. The as-deposited 12-mu m-thick coatings exhibit a face centered cubic nanocrystalline structure with a grain size of 37-46 nm and a uniform composition that replicates the C276 alloy deposition source. The as-deposited coating hardness H = 62 +/- 03 GPa is four times larger than the known bulk H = 1.5-1.9 GPa. This is attributed to the small grain size and associated Hall-Petch hardening. Annealing in air for 1 hat 600 degrees C, 700 degrees C, and 800 degrees C causes negligible changes in grain size but results in changes in microstructure and texture and a significant increase in H to 73-8.5 GPa. Compositional maps by Auger electron and energy-dispersive spectroscopies as well as a secondary x-ray diffraction peak suggest that this increase is due to segregation and precipitation of Cr- and Mo-rich regions. Published by Elsevier B.V.
资助项目	NSF[1031201] ; NSF[1309490]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000354149400037
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34050]
专题	兰州理工大学材料科学与工程学院
通讯作者	Mulligan, C. P.
作者单位	1.US Army, Armament Res & Dev Ctr, Benet Labs, Watervliet, NY 12189 USA 2.SW Res Inst, San Antonio, TX 78238 USA 3.Rensselaer Polytech Inst, Dept Mat Sci & Engn, Troy, NY 12180 USA 4.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Mulligan, C. P.,Wei, R.,Yang, G.,et al. Microstructure and age hardening of C276 alloy coatings[J]. SURFACE & COATINGS TECHNOLOGY,2015,270:299-304.
APA	Mulligan, C. P.,Wei, R.,Yang, G.,Zheng, P.,Deng, R.,&Gall, D..(2015).Microstructure and age hardening of C276 alloy coatings.SURFACE & COATINGS TECHNOLOGY,270,299-304.
MLA	Mulligan, C. P.,et al."Microstructure and age hardening of C276 alloy coatings".SURFACE & COATINGS TECHNOLOGY 270(2015):299-304.