학술논문
Ductile Ti–Ni Alloys With an Equiaxed Microstructure Designed by Tuning the Precipitation Pathway of Ti2 Ni
Document Type
Brief Communication
Author
Source
Metallurgical and Materials Transactions A: Physical metallurgy and materials science. 54(11):4208-4214
Subject
Language
English
ISSN
1073-5623
1543-1940
1543-1940
Abstract
The abnormal precipitation of Ti2 Ni arising from compositional inhomogeneity leads to the formation of α-laths in powder metallurgy Ti–Ni alloys. This exacerbates the detrimental effect of eutectoid on ductility. Herein, we have developed a uniform Ni-coated Ti powder to obtain rapid compositional homogeneity during sintering process. This rectified the abnormal eutectoid reaction pathway, enabling us to obtain fully equiaxed α-Ti grains. Consequently, the equiaxed microstructure effectively counteracted the degradation in ductility caused by brittle eutectoid.Graphical Abstract: