高压处理对Cu_(75.15)Al_(24.85)合金组织与电阻率的影响  

Effect of high pressure treatment on microstructure and resistivity of Cu_(75.15)Al_(24.85) alloy

作　　者：谌岩[1,2] 刘琳[3] 刘建华[2] 张瑞军[2] 

机构地区：[1]燕山大学环境与化学工程学院,秦皇岛066004 [2]燕山大学亚稳材料制备技术与科学国家重点实验室,秦皇岛066004 [3]唐山职业技术学院,唐山063000

出　　处：《物理学报》2012年第17期378-383,共6页Acta Physica Sinica

基　　金：河北省留学回国人员科研启动基金资助的课题~~

摘　　要：本文借助金相显微镜,XRD,SEM和DSC等手段对Cu_(75.15)Al_(24.85)合金经1—5 GPa压力,750℃C保温15 min处理前后的组织结构进行了分析,并用电阻率测试仪对合金的电阻率进行测试,以此探讨了高压处理对Cu_(75.15)Al_(24.85)合金组织与电阻率的影响.结果表明:高压处理能细化Cu_(75.15)Al_(24.85)合金的组织,增大合金的电阻率,当压力为3 GPa时,该合金获得的组织最细小,电阻率最大.The microstructures of Cu75.15Al24.85 alloy before and after treatment at 1-5 GPa pressure and 750℃ for 15 min are analyzed by optical metallograph, X-ray diffraction, scanning electron microscopy and differential scanning calorimeter, and its resistivity is also obtained through resistivity measuring instrument. According to the obtained results, the effects of high pressure treatment on the microstructure and resistivity are investigated. The results show that high pressure treatment can refine the microstructure, and increase the resistivity of the alloy. When the pressure is 3 GPa, the refinement is more remarkable and the resistivity reaches a maximal value.

关 键 词：Cu_75.15Al_24.85合金 高压处理 组织 电阻率 

分 类 号：O482.4[理学—固体物理]