机械合金化及热处理对TiH_2-Ni粉末结构和形貌的影响（英文）

Saved in:
Bibliographic Details
Published in中国有色金属学报：英文版 Vol. 21; no. 3; pp. 512 - 516
Main Author 赵相玉 马立群 丁毅 沈晓冬
Format Journal Article
LanguageEnglish
Published 2011
Subjects
Ti-Ni合金
微结构
退火
非晶合金
Online AccessGet full text

Cover

More Information
Bibliography:43-1239/TG
ZHAO Xiang-yu1, MA Li-qun1, DING Yi1, SHEN Xiao-dong1, 2 1. College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China
Ti-Ni alloy; amorphous alloy; annealing; microstructure
Mechanical alloying and subsequent annealing treatment were carried out to investigate the evolution of the microstructure and morphology of the TiH2-Ni system. The Ni（Ti） solid solution was formed in the initial milling process. When the milling time was 60 h, the alloy with uniform elemental distribution showed an amorphous structure containing a small amount of TiH2 nanocrystalline phase. The annealing treatment at 693 K contributed to a completion of amorphization for the alloy milled for 60 h. For the treatment at 1 073 K, a crystallization reaction for the amorphous phase occurred, leading to the formation of Ti2Ni, TiNi, and TiNi3 compounds by a short time treatment. Moreover, a separation of Ni-rich phases from the matrix and a phase transition among these three compounds occur by a long time treatment.
ISSN:1003-6326