Reactive Wetting of TC4 Titanium Alloy by Molten 6061 Al and 4043 Al Alloys

doi:10.11900/0412.1961.2016.00289

	Reactive Wetting of TC4 Titanium Alloy by Molten 6061 Al and 4043 Al Alloys
	Jin Peng 1; Sui Ran 2; Li Fuxiang 1; Yu Weiyuan 1; Lin Qiaoli 1
刊名	ACTA METALLURGICA SINICA
	2017-04-11
卷号	53 期号:4 页码:479-486
关键词	precursor film Ti-6Al-4V interfacial reaction
ISSN号	0412-1961
DOI	10.11900/0412.1961.2016.00289
英文摘要	In order to improve the inoxidizability of TC4 alloy at high temperatures, hot dip aluminizing process is an efficient and economical way for industrial application. In this process, the wetting of TC4 alloy by molten Al alloy is the main factor which determined the coating quality. In this work, wetting of TC4 alloys by two industrial grade Al alloys (i.e., 6061 Al and 4043 Al alloys) were studied by using the modified sessile drop method at 600 similar to 700 degrees C under high vacuum. The results show that Al/Ti system is a typical reactive wetting, and the spreading dynamics can be described by reaction product control model, further the whole wetting behavior can be divided into two stages: the first stage for the nonlinear spreading and the second stage for the linear spreading. The small amount of alloying element Si in the Al alloys can cause significantly segregation at liquid/solid interface and formation of the Si-rich phase (Ti7Al5Si12). Ti7Al5Si12 decomposition is responsible for the nonlinear spreading, and Ti7Al5Si12 decomposition and Al3Ti formation are together responsible for the linear spreading. The formation of precursor film accompanies with the good final wettability.
资助项目	National Natural Science Foundation of China[51665031][51465032]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000399921900012
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33301]
专题	实验室建设与管理处材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Inst Technol, Sch Mat Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Jin Peng,Sui Ran,Li Fuxiang,et al. Reactive Wetting of TC4 Titanium Alloy by Molten 6061 Al and 4043 Al Alloys[J]. ACTA METALLURGICA SINICA,2017,53(4):479-486.
APA	Jin Peng,Sui Ran,Li Fuxiang,Yu Weiyuan,&Lin Qiaoli.(2017).Reactive Wetting of TC4 Titanium Alloy by Molten 6061 Al and 4043 Al Alloys.ACTA METALLURGICA SINICA,53(4),479-486.
MLA	Jin Peng,et al."Reactive Wetting of TC4 Titanium Alloy by Molten 6061 Al and 4043 Al Alloys".ACTA METALLURGICA SINICA 53.4(2017):479-486.