The effects of substrate dilution on the microstructure and wear resistance of PTA Cu-Al-Fe aluminium bronze coatings

doi:10.1016/j.wear.2019.203102

	The effects of substrate dilution on the microstructure and wear resistance of PTA Cu-Al-Fe aluminium bronze coatings
	Kucita, P.1; Wang, S.C.1; Li, W.S.2; Cook, R.B.1; Starink, M.J.3
刊名	Wear
	2019-12-15
卷号	440-441
关键词	Aluminum alloys Aluminum coatings Binary alloys Bronze Diffusion coatings Dilution Hard facing Martensite Microstructure Piles Plasma torches Plasma welding Precious metal alloys Ternary alloys Wear of materials Wear resistance Bronze coating Deposition current High wear resistance Medium carbon steel substrate Plasma transferred arc Sliding properties Sliding wear Wear characteristics
ISSN号	00431648
DOI	10.1016/j.wear.2019.203102
英文摘要	Cu-Al-Fe aluminium bronze alloys are good candidates for precious tools and forming dies due to their high wear resistance, good sliding properties and low tendency for adhesion to ferrous metals. Plasma transferred arc (PTA) is an effective process for deposition of such robust coatings by enhancing the bond between the bronze coating and steel substrate. However, the microstructure and wear characteristics of these coatings are strongly influenced by the diffusion of substrate elements (mostly iron) to the interface. In the present study, the effects of substrate dilution on the microstructure and wear behaviour of Cu-Al-Fe alloy deposited by PTA on medium carbon steel substrate were investigated. The results show that the deposition current controls the melting temperature and iron dilution which result in the formation of Cu3Al martensitic β1' phase in a low dilution and the ordered β1 phase in high dilution. The wear behaviour of the coating is dominated by failure of the matrix phase. Low dilution coating with martensitic phase exhibits the highest wear resistance. On high diluted Fe rich coating, pile up of dislocation on the intermetallic K phase leads to surface cracks and delamination of the coating resulting in a high wear rate. © 2019 Elsevier B.V.
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000503462500023
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114322]
专题	材料科学与工程学院
作者单位	1.National Centre for Advanced Tribology at Southampton, School of Engineering, University of Southampton, University Road, Southampton; SO17 1BJ, United Kingdom; 2.State Key Laboratory of Advanced Non-ferrous Materials, Lanzhou University of Technology, China; 3.Engineering Materials, School of Engineering, University of Southampton, University Road, Southampton; SO17 1BJ, United Kingdom
推荐引用方式 GB/T 7714	Kucita, P.,Wang, S.C.,Li, W.S.,et al. The effects of substrate dilution on the microstructure and wear resistance of PTA Cu-Al-Fe aluminium bronze coatings[J]. Wear,2019,440-441.
APA	Kucita, P.,Wang, S.C.,Li, W.S.,Cook, R.B.,&Starink, M.J..(2019).The effects of substrate dilution on the microstructure and wear resistance of PTA Cu-Al-Fe aluminium bronze coatings.Wear,440-441.
MLA	Kucita, P.,et al."The effects of substrate dilution on the microstructure and wear resistance of PTA Cu-Al-Fe aluminium bronze coatings".Wear 440-441(2019).