CONSTITUTION OF THE HF-NI SYSTEM UP TO 50 AT-PERCENT NI

被引：16

作者：

YEREMENKO, VN

SEMENOVA, EL

TRETYACHENKO, LA

PETYUKH, VM

机构：

[1] I.N. Frantsevich Institute for Problems of Material Science, Academy of Science of Ukraine, Kiev

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 191卷 / 01期

关键词：

Crystal structure - Eutectics - Hafnium alloys - Melting - Nickel alloys - Phase diagrams - Phase transitions;

D O I：

10.1016/0925-8388(93)90281-Q

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Hf-Ni system phase diagram has been reinvestigated in the hafnium-rich composition range up to 50 at.% Ni. Two intermetallic compounds Hf2Ni and HfNi melting congruently at 1220-degrees-C and 1505-degrees-C, respectively, were observed. There are two eutectics: L half arrow right over half arrow left beta-Hf + Hf2Ni with about 29 at.% Ni at 1145-degrees-C and L reversible Hf2Ni + HfNi with about 35 at.% Ni at 1175-degrees-C. Allotropic transformation in HfNi takes place at 1150-degrees-C. The cubic CsCl-type crystal structure of the high temperature modification of HfNi has been determined indirectly for the first time.

引用

页码：117 / 119

页数：3