The influence of Al contents and heat treatments on magneto-mechanical hysteresis damping of Fe-Al alloys
作者单位：School of Mechanical and Electronic EngineeringSuzhou Vocational University Anhui Guozhen Environmental Protection Science and Technology Joint Stock Co.Ltd
会议名称：《第二届海峡两岸功能材料科技与产业峰会（2015）》
会议日期：2015年
学科分类：080503[工学-材料加工工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
关 键 词：Fe-Al alloys magneto-mechanical damping Al contents heat treatment
摘 要：The influencing rules and mechanisms of Al contents and heat treatments on the magneto-mechanical hysteresis damping of Fe-Al alloys were investigated using a functional internal friction apparatus in this paper. It was shown that the air-cooled Fe-10.5(at.%) Al alloy possesses the optimum damping capacity and the Fe-29(at.)%Al and Fe-38(at.) %Al alloys have lower the damping than the Fe-10.5(at.%) Al alloy with the same heat treatments. The as-cast and water-quenched Fe-Al alloys exhibit the low damping capacity. In addition,the heat treatment temperature has an important effect on the damping capacity of the Fe-Al alloys. A appropriate heating temperature is necessary to obtain high damping capacity for Fe-Al alloys. The damping capacity of Fe-Al alloys is decreased when the heating temperature of heat treatments is enhanced.