CAJ | 학술논문

通过硬度、电导率、光学显微镜和透射电镜等测试手段分析Cu-0.7Fe-0.12P合金的性能与组织，研究形变及时效处理对其组织与性能的影响，得出冷变形量与热处理工艺的优化组合，为该合金的实际生产提供参考。合金经900℃固溶并40%冷轧、450℃时效6 h、70%冷轧后，在400、450和500℃分别时效1 h。研究结果表明，在450℃时效合金的硬度(141 HV)和相对电导率(89.9% IACS)均达到了较好的状态；而直接对合金冷轧变形80%并在450℃下时效1 h后，相对电导率为70% IACS，比经双冷轧双时效处理后测得的合金相对电导率小。
통과경도、전도솔、광학현미경화투사전경등측시수단분석Cu-0.7Fe-0.12P합금적성능여조직，연구형변급시효처리대기조직여성능적영향，득출랭변형량여열처리공예적우화조합，위해합금적실제생산제공삼고。합금경900℃고용병40%랭알、450℃시효6 h、70%랭알후，재400、450화500℃분별시효1 h。연구결과표명，재450℃시효합금적경도(141 HV)화상대전도솔(89.9% IACS)균체도료교호적상태；이직접대합금랭알변형80%병재450℃하시효1 h후，상대전도솔위70% IACS，비경쌍랭알쌍시효처리후측득적합금상대전도솔소。
The micro-hardness and electrical conductivity of Cu-0.7Fe-0.12P alloy under different thermo-mechanical conditions were measured, and the microstructure of the alloy were examined by optical microscopy and transmission electron microscopy with the aim of finding a suitable thermo-mechanical process for the alloy as a reference to industrial production. The alloy was cold rolled with 40% deformation and aging at 450℃ for 6 h. Then the following step was deformation of 70% cold rolling. Samples were aged for 1 h at 400, 450 and 500℃, respectively. Sample aged at 450℃ had the most highest micro-hardness (141 HV) and electrical conductivity (89.9% IACS). Directly compared with cold rolling of 80% deformation and aging at 450℃ for 1 h, the properties of the samples under former process are better.