CAJ | 학술논문

对AgCuZnNi合金的物相以及变形过程中合金的显微组织、力恘、电恘性能进行了悁究.悁究结果表明:合金主要由富Ag固溶体以及富Cu相组成,Zn与Ni主要存在于富Cu相中.变形量较小时,基体中的富Cu相发生位移、转动和破碎,随着变形量的继恋增加,大颗粒的富Cu相先产生变形,最后全部转变为纤维组织.抗拉强度和硬度随变形量的增加而增加,是形变强化、晶界强化和纤维强化共同作用的结果.电阻率随变形量的增加而增加,晶体缺陷及界面增多是电阻率增加的主要原因.
대AgCuZnNi합금적물상이급변형과정중합금적현미조직、력규、전규성능진행료연구.연구결과표명:합금주요유부Ag고용체이급부Cu상조성,Zn여Ni주요존재우부Cu상중.변형량교소시,기체중적부Cu상발생위이、전동화파쇄,수착변형량적계련증가,대과립적부Cu상선산생변형,최후전부전변위섬유조직.항랍강도화경도수변형량적증가이증가,시형변강화、정계강화화섬유강화공동작용적결과.전조솔수변형량적증가이증가,정체결함급계면증다시전조솔증가적주요원인.
The phase composition and microstructure, mechanical properties, electrical properties during deformation of AgCuZnNi alloy were analyzed. The results show that the AgCuZnNi alloy is mainly composed of silver-rich phase and copper-rich phase, Zn and Ni mainly exist in copper-rich phase. The displacement, rotation and broken of the copper-rich phase take place only when the deformation is small. With the increase of deformation, large particles of copper-rich phase first produce deformation, finally, all particles of copper-rich phase completely convert to fibrous tissue. Tensile strength and hardness increase with the increase of deformation, which attributed to the joint actions of deformation strengthening, grain boundary strengthening and fiber strengthening. Resistivity decreases with the increase of deformation, due to the increase of crystal defects and grain boundary.