Low-temperature plasma nitriding of titanium layer on Ti/Al clad sheet

IMR OpenIR

	Low-temperature plasma nitriding of titanium layer on Ti/Al clad sheet
	J. Sun; W. P. Tong; L. Zuo; Z. B. Wang
	2013
发表期刊	Materials & Design
ISSN	0261-3069
卷号	47 页码:408-415
摘要	A nanostructured surface layer was fabricated on titanium layer of a Ti/Al clad sheet composite by means of the surface mechanical attrition treatment (SMAT). The low-temperature plasma nitriding treatment of the SMAT sample was investigated in comparison with the coarse-grained sample by using structural analysis (X-ray diffraction, scanning electron microscopy, and transmission electron microscopy) as well as mechanical and corrosion property measurements. Results showed that the nitriding kinetics of the SMAT sample with the nanostructured surface layer was greatly enhanced, so that the nitriding temperature could be as low as 550 degrees C, which is significantly lower than the melting point of the aluminum layer on Ti/Al clad sheet (conventional nitriding can lead to melting of the aluminum layer due to higher temperature about 800 degrees C). The nitrided layer of the SMAT sample was composed of nanostructured epsilon-TiN and gamma-Ti2N phase with high supersaturation of nitrogen. The surface hardness and the hardened surface layer thickness as well as the wear and corrosion resistances of the nitrided SMAT sample were all substantially enhanced relative to the nitrided coarse-grained sample. (C) 2012 Elsevier Ltd. All rights reserved.
部门归属	[sun, j. ; tong, w. p. ; zuo, l.] northeastern univ, minist educ, key lab electromagnet proc mat, shenyang 110819, peoples r china. [wang, z. b.] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; tong, wp (reprint author), northeastern univ, minist educ, key lab electromagnet proc mat, shenyang 110819, peoples r china. ; wptong@mail.neu.edu.cn
关键词	Titanium/aluminum Clad Sheet Surface Mechanical Attrition Treatment Plasma Nitriding Wear Resistance Corrosion Mechanical Attrition Treatment Nanostructured Surface-layer Metallic Materials Ti-6al-4v Alloy Grain Iron Diffusion Kinetics Microstructure Aluminum
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/321006/71478
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Sun,W. P. Tong,L. Zuo,et al. Low-temperature plasma nitriding of titanium layer on Ti/Al clad sheet[J]. Materials & Design,2013,47:408-415.
APA	J. Sun,W. P. Tong,L. Zuo,&Z. B. Wang.(2013).Low-temperature plasma nitriding of titanium layer on Ti/Al clad sheet.Materials & Design,47,408-415.
MLA	J. Sun,et al."Low-temperature plasma nitriding of titanium layer on Ti/Al clad sheet".Materials & Design 47(2013):408-415.