Mobility and retention of implanted hydrogen in Ti225 titanium alloy

	Mobility and retention of implanted hydrogen in Ti225 titanium alloy
	Wang, T ; Grambole, D ; Grotzschel, R ; Herrmann, F ; Kreissig, U ; Eichhorn, F ; Brauer, G ; Moller, W
	2002-09
关键词	hydrogen titanium diffusion concentration
卷号	158
页码	139-145
英文摘要	The behaviours of implanted hydrogen in Ti225 alloy was investigated in this work. Hydrogen ion beam implantation was used to load hydrogen into the sample. Resonant nuclear reaction analysis (NRA) and elastic recoil detection analysis (ERDA) were applied to obtain the depth profiles of hydrogen versus implantation dose. Two kinds of hydrogen have been found in the samples, one is as quasi-mobile and another is chemically bonded hydrogen. Three hydrogen precipitation stages, which relate to the different chemical states of hydrogen, are determined. Using X-ray diffraction (XRD), the hydride phase transformation from solid solution in titanium to titanium hydride (TiH1) and then titanium dihydride (TiH2) tetragonal structure has been observed. The change is dose dependent in the implantation dose range between 2 x 10(16) and 6 x 10(17) H/cm(2). The phase transformation from TiH1 to TiH2 occurs at an implantation dose greater than 1 x 10(17) H/cm(2) but finishes at a dose of 6 x 10(17) H/cm(2) with the saturation of hydrogen concentration at approximately 23 at.%. The inhomogeneous planar distribution of the hydrogen was also observed using both scanning micro-probe ERDA and scanning electron microscopy (SEM). (C) 2002 Elsevier Science B.V. All rights reserved.
会议录	SURFACE & COATINGS TECHNOLOGY
会议录出版者	ELSEVIER SCIENCE SA
会议录出版地	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
语种	英语
WOS研究方向	Materials Science ; Physics
WOS记录号	WOS:000178482100026
内容类型	会议论文
源URL	[http://119.78.100.186/handle/113462/57496]
专题	中国科学院近代物理研究所
通讯作者	Wang, T
作者单位	1.Forschungszentrum Rossendorf eV, Inst Ionenstrahlenphys & Mat Forsch, D-01314 Dresden, Germany 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, T,Grambole, D,Grotzschel, R,et al. Mobility and retention of implanted hydrogen in Ti225 titanium alloy[C]. 见:.