CAJ | 학술논문

为阐明Cu-Cr-Zr合金时效过程中的组织性演化规律，本文对经过连续铸造、固溶和冷拉拔的Cu-1.5Cr-0.2Zr合金进行时效处理，研究了时效温度和时效时间对该合金组织和性能的影响，并对该合金在不同温度下的时效行为进行了分析。结果表明：对Cu-Cr-Zr合金施以450℃/3 h时效可获得最佳的性能组合，其显微硬度和导电率分别为241 HV和72.5% IACS。时效时合金化元素的脱溶使合金基体的过饱和度降低，发生了合金化元素再分配过程。时效态Cu-Cr-Zr合金的断裂机制为微孔聚集型延性断裂。
위천명Cu-Cr-Zr합금시효과정중적조직성연화규률，본문대경과련속주조、고용화랭랍발적Cu-1.5Cr-0.2Zr합금진행시효처리，연구료시효온도화시효시간대해합금조직화성능적영향，병대해합금재불동온도하적시효행위진행료분석。결과표명：대Cu-Cr-Zr합금시이450℃/3 h시효가획득최가적성능조합，기현미경도화도전솔분별위241 HV화72.5% IACS。시효시합금화원소적탈용사합금기체적과포화도강저，발생료합금화원소재분배과정。시효태Cu-Cr-Zr합금적단렬궤제위미공취집형연성단렬。
In order to illuminate the evolution law of microstructures and properties of Cu-Cr-Zr alloy during aging, effects of aging temperature and aging time on microstructures and properties of Cu-1.5Cr-0.2Zr alloys which are produced by continuous casting, solution-treated and cold draw-ing process are investigated in this paper, and the aging behavior of the alloy is analyzed.Results show that a better combination of properties is obtained for the Cu-Cr-Zr alloy aged at 450℃ for 3 h, the micro-hardness and electrical conductivity of the alloy are 241 HV and 72.5%IACS. The alloying elements desolvation leads to the supersaturation reducing in the matrix and the alloying elements redistribution process occurs by aging treatment. The fracture mechanism of Cu-Cr-Zr alloy after aging is the microporous coalescence fracture.