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The effect of aging treatment on the magnetic properties of PtCo alloys

Liu Tao Li Wei

The effect of aging treatment on the magnetic properties of PtCo alloys

Liu Tao, Li Wei
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  • Abstract views:  1869
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  • Received Date:  11 June 2008
  • Accepted Date:  20 January 2009
  • Published Online:  20 August 2009

The effect of aging treatment on the magnetic properties of PtCo alloys

  • 1. 钢铁研究总院功能材料研究所,北京 100081

Abstract: The effect of aging temperature on the magnetic properties has been studied. The magnetic measurement results indicate that the remanence decreases with increasing aging temperature Ta,and the coercivity has a maximum value at Ta=690℃. After the first aging, the degree of ordering increases with Ta, which shows that the grain size of ordered phase also increases. This is the reason for the change of the coercivity. After the second aging, the microstructure does not change and the anisotropy field of ordered phase increases, which leads to an increase in the coercivity.

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