配分热处理温度对ADI阻尼性能的影响  

Effect of Partitioning Heattreatment Temperature on Damping Properties of ADI

作　　者：刘晓宇 王丽萍[1] 郭二军[1] 冯义成[1] 伊鹏跃[1] LIU Xiao-Yu;WANG Li-ping;GUO Er-jun;FENG Yi-cheng;YI Peng-yue(School of Materials Science and Engineering,Harbin University of Science and Technology,Harbin 150040,China)

机构地区：[1]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040

出　　处：《哈尔滨理工大学学报》2018年第2期124-128,共5页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金(51374086;51674094)

摘　　要：针对传统热处理工艺生产的奥贝球铁(ADI),其阻尼性能与高阻尼合金的标准还有一定的差距。采用两步法淬火-配分新型热处理工艺,对不同配分热处理温度下ADI的阻尼性能进行了系统的研究,试验结果表明:固定配分温度为360℃不变,应变振幅较低时,淬火温度为240℃时ADI的阻尼性能最佳;应变振幅较高时,淬火温度为260℃时ADI的阻尼性能最佳,内耗值Q-1>0.01,达到了高阻尼合金的标准;淬火温度为300℃时,存储模量最高,淬火温度为280℃时存储模量最低。固定淬火温度为280℃不变,配分温度为320℃时ADI的阻尼性能最佳,最高内耗值Q-1达到了0.017;配分温度为340℃时存储模量最高,配分温度为360℃时存储模量最低。In view of the traditional heat treatment process of austempered ductile iron(ADI),the damping performance,there is still a gap to the standard of high damping alloy.Take the two-step method of quenching-partitioning heat treatment process,the damping properties of different partitioning heattreatment temperatures’ADI were studied systematically,The experimental results showed that:Fixed partition temperature is 360℃,whenthe strain amplitude is lower,whenthe quenching temperature is 240℃,ADI has the best damping properties;When the strain amplitude is higher,whenthe quenching temperature is 260℃,ADIhas the best damping properties;internal friction valuesQ-1>0.01,reach the standard of the high damping alloy.when the quenching temperature is 280℃,ADIhasthe has the lowest storage modulus.Fixed partition temperature is 360℃,whenthe partitioning temperature is 320℃,ADI has the best damping properties.The highest internal friction values Q-1 reached to 0.017;When thepartitioning temperature is 360℃,ADI has the lowest storage modulus.

关 键 词：奥贝球铁 淬火温度 配分温度 阻尼性能 存储模量 

分 类 号：TG156[金属学及工艺—热处理]