LOW-FREQUENCY DAMPING BEHAVIOR OF PURE MG PROCESSED BY EQUAL CHANNEL ANGULAR PRESSING
Equal channel angular pressing (ECAP) was performed on the extruded pure magnesium at 250℃ for 4 passes. After ECAP processing, the grain size was significantly refined. And the damping capacity was increased at low strain amplitudes, but decreased at high strain amplitudes. Three peaks were observed during the measurement of damping capacity at elevated temperatures. The mechanisms for damping capacity of pure Mg at ambient and elevated temperatures were discussed.
ECAP pure magnesium microstructure damping capacity
G.D.FAN M.Y.ZHENG X.S.HU H.CHANG K.WU
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Peoples Republic of China
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1829-1834
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）