Microstructure and properties of A357 aluminium alloy treated by pulsed magnetic field

作者：Zhang, L.^*; Zhan, W.; Jin, F.; Zhou, Q.

来源：Materials Science and Technology, 2018, 34(6): 698-702.

DOI：10.1080/02670836.2017.1410925

• Pulsed magnetic field
• A357 alloy
• microstructure
• mechanical property
• damping capacity

This study examined the effects of a pulsed magnetic field (PMF) on the solidified microstructure and properties of A357 aluminium alloy. Results showed that the solidified microstructure of the alloy treated by a PMF was refined. The treated alloy in the T6 state had superior mechanical properties, with the ultimate tensile strength, yield strength and elongation increasing by 48 MPa (18.5%), 46 MPa (16.4%) and 4.8% (142%), respectively, when compared with the untreated alloy. When testing at room temperature, with a strain amplitude of 1 x 10(-4) and at a frequency of 1 Hz, the damping capacity value was 14.2 x 10(-3) for the alloy subjected to a PMF treatment, which increased by nearly 170% when compared with the untreated alloy.

• 出版日期2018
• 单位南昌航空大学