摘要
用金相、透射电镜和X射线衍射分析对三种成分的CuAlNi合金研究了成分和热处理对相组成,B2和D0_3型畴尺寸以及马氏体热弹性行为的影响。结果表明,随Al含量的增加马氏体结构类型从18R_1变到2H,并且相变温度降低。随着冷速增大,B2和D0_3型畴的尺寸减小。
The effect of the composition and thermal treatment on the phase
constituent, the size of B2- and DO_3 derived domains and martensitic thermoelastic
behaviour in three CuAlNi alloys has been studied by means of metallography,
TEM and X-ray diffraction analysis. It is shown that the martensite type changes
from 18R_1 to 2H structure and the transition temperature decreases with the increase
of the Al content. Moreover, the size of the B2- and DO_3, derived domains
decreases with the increase of the cooling rate.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第3期A221-A226,共6页
Acta Metallurgica Sinica
基金
国家自然科学基金
关键词
CuAlNi合金
马氏体
相组成
成分
CuAlNi alloy
shape memory alloy
martensitic transformation
