【作者】 刘子娟； 郑学斌； 刘楚明；

【Author】 LIU Zi-juan~1,Zheng Xue-bin~2,LIU Chu-ming~3, (1.AVIC Aviation Powerplant Research Institute,Zhuzhou 412002,China; 2.Zhuzhou Cemented Carbide Group Corp.LTD,Zhuzhou 412000,China; 3.School of Materials Science and Engineering,Central South University,Changsha 410083,China)

【机构】 中航工业航空动力机械研究所； 株洲硬质合金集团有限公司； 中南大学材料科学与工程学院；

【摘要】 测量和分析了室温下铸态、均匀化退火态和均匀化后热循环处理的AZ61合金的阻尼性能随应变振幅的变化。结果表明,对AZ61镁合金铸态试样进行均匀化退火处理和热循环处理,试样的损耗系数得到较大的提高,且在本实验参数范围内损耗系数随热循环温度的升高和循环次数的增加而增大;热循环处理能同时提高均匀化退火试样的损耗系数和硬度,是实现AZ61镁合金结构-功能一体化的有效途径之一。更多还原

【Abstract】 Strain amplitude dependence of the damping capacity was measured and studied on an AZ61 magnesium alloy specimens of as-cast,homogeneous and thermally cycled.The result indicated that homogenize annealing and thermal cycling greatly increased the damping capacity,and the loss factor increased with the increasing temperature and number of cycles in the present experimental conditions.Thermal cycling treatment synchronously increased the loss factor as well as Brinell hardness of homogeneous specimens.更多还原