TEM study of the initial oxidation of Ti42Al48Cr8Ag2

doi:10.1007/s11085-007-9061-2

IMR OpenIR

	TEM study of the initial oxidation of Ti42Al48Cr8Ag2
	Guo, Changyou ; Zhang, Caibei ; Lu, Wei ; He, Lianlong ; Xi, Yanjun ; Wang, Fuhui
通讯作者	Zhang, Caibei(cbzhang4616@yahoo.com.cn)
	2007-08-01
发表期刊	OXIDATION OF METALS
ISSN	0030-770X
卷号	68 期号:1-2 页码:65-76
摘要	A microstructural investigation of oxide scales was carried out by analytical electron microscope (AEM) after the as-cast Ti42Al48Cr8Ag2 alloy was exposed to air at 1,173 K for 5, 30 and 180 min, respectively. The results indicated that the formation of oxide scale experiences a transformation from ternary-layer system consisting of an outmost rutile (TiO2-rich) layer, mid amorphous alumina and inner nitrides to a double-layer of TiO2 and Al2O3-rich with increasing time from 5 to 30 min. In the subsurface zone, a change was also found a metastable Cr-rich new phase with bcc structure of a = 1.371 nm formed in addition to the oxidation for X-phase during 30 min. After 180 min, a continuous Laves-phase layer formed instead at the same position. In addition, the process revealed that amorphous alumina changed to a metastable structure before stable alpha-Al2O3 formed.
关键词	Ti42Al48Cr8Ag2 alloy AEM oxidation nitrides new phase
DOI	10.1007/s11085-007-9061-2
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000247931600006
出版者	SPRINGER/PLENUM PUBLISHERS
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/91470
专题	中国科学院金属研究所
通讯作者	Zhang, Caibei
作者单位	1.Northeastern Univ, Coll Sci, Shenyang 110004, Peoples R China 2.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 3.Zhongyuan Univ Technol, Zhengzhou 450007, Peoples R China
推荐引用方式 GB/T 7714	Guo, Changyou,Zhang, Caibei,Lu, Wei,et al. TEM study of the initial oxidation of Ti42Al48Cr8Ag2[J]. OXIDATION OF METALS,2007,68(1-2):65-76.
APA	Guo, Changyou,Zhang, Caibei,Lu, Wei,He, Lianlong,Xi, Yanjun,&Wang, Fuhui.(2007).TEM study of the initial oxidation of Ti42Al48Cr8Ag2.OXIDATION OF METALS,68(1-2),65-76.
MLA	Guo, Changyou,et al."TEM study of the initial oxidation of Ti42Al48Cr8Ag2".OXIDATION OF METALS 68.1-2(2007):65-76.