Effect of Tempered Martensite on Magnetomechanical Damping of Ferritic Matrix Dual Phase Alloys

材料科学技术（英文）, 1993, 9(4): 293-296.

Effect of Tempered Martensite on Magnetomechanical Damping of Ferritic Matrix Dual Phase Alloys

Junsheng LU Xiaodong LIU Wenjie ZHENG Baorong WU Hui BI Central Iron and Steel Research Institute , Beijing , 100081 , ChinaGuijin WANG Dept.of Materials Science and Engineering , University of Pennsylvania , Philadelphia , PA 19104 , USA

Keywords： martensite , null , null

The influence of the volume fraction of tempered martensite on magnetomechanical damping of the ferritic matrix in dual-phase alloys was studied.The experimental results showed that(1) dual-phase damping alloy is of good combination of strength and toughness: (2)good damping ca- pacity(Q~(-1)≥5.0×10~(-3))can be obtained in dual-phase alloys only when the volume fraction of tempered martensite was controlled properly.The effect of martensite on magnetomechanical damp- ing of the ferritic matrix was analysed.The damping capacity of dual-phase alloys was related to the volume fraction V_m of tempered martensite by Q_~(-1)=Q_~(-1) (1-V_m/1+BV_m)at small vibration strain amplitudes ε_A≤5.0×10~(-6).

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Effect of Tempered Martensite on Magnetomechanical Damping of Ferritic Matrix Dual Phase Alloys

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