TY - JOUR
T1 - Phase equilibrium and martensitic transformation in near equiatomic Ti{single bond}Pd alloys
AU - Yamamuro, T.
AU - Morizono, Y.
AU - Honjyo, J.
AU - Nishida, M.
N1 - Funding Information:
This work was supported by Grant-in-Aid for Exploratory Research from the Ministry of Education, Culture, Sports, Science and Technology and Grant-in-Aid for Scientific Research (B) from Japan Science Promotion Society, COE-directing Research Program B at Kumamoto University on Nano-space Electrochemistry and Special Program at Kumamoto University for Promoting Research on Nano-space Electrochemistry.
PY - 2006/11/25
Y1 - 2006/11/25
N2 - The homogeneity range of the TiPd compound is experimentally determined from martensitic transformation behaviors of solution treated and aged specimens with various compositions and diffusion couple method, and then the phase diagram of Ti{single bond}Pd binary system in Ti side is reinvestigated. The phase boundary of TiPd compound on the Pd side is almost constant at about 50.5 at.% Pd. On the other hand, that on the Ti side extends from 50.6 at.% Ti at around 873 K to about 51.8 at.% Ti at 1073 K. From the diffusion couple experiments, it is recognized that there is an A2(bcc) to B2 order-disorder transformation around 30 at.% Pd instead of a β-Ti and TiPd duplex phase region. It is also confirmed that the Ti3Pd compound is formed by a peritectoid reaction between β-Ti and Ti2Pd. From these results, we propose a new phase diagram of the Ti{single bond}Pd binary system.
AB - The homogeneity range of the TiPd compound is experimentally determined from martensitic transformation behaviors of solution treated and aged specimens with various compositions and diffusion couple method, and then the phase diagram of Ti{single bond}Pd binary system in Ti side is reinvestigated. The phase boundary of TiPd compound on the Pd side is almost constant at about 50.5 at.% Pd. On the other hand, that on the Ti side extends from 50.6 at.% Ti at around 873 K to about 51.8 at.% Ti at 1073 K. From the diffusion couple experiments, it is recognized that there is an A2(bcc) to B2 order-disorder transformation around 30 at.% Pd instead of a β-Ti and TiPd duplex phase region. It is also confirmed that the Ti3Pd compound is formed by a peritectoid reaction between β-Ti and Ti2Pd. From these results, we propose a new phase diagram of the Ti{single bond}Pd binary system.
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U2 - 10.1016/j.msea.2006.01.120
DO - 10.1016/j.msea.2006.01.120
M3 - Article
AN - SCOPUS:33750446318
SN - 0921-5093
VL - 438-440
SP - 327
EP - 331
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
IS - SPEC. ISS.
ER -