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Effect of microstructure on the coercivity of Fe40—45Cr30—35Co20—25Mo0—4Zr0—2 alloy

Li Teng Li Wei Pan Wei Li Xiu-Mei

Effect of microstructure on the coercivity of Fe40—45Cr30—35Co20—25Mo0—4Zr0—2 alloy

Li Teng, Li Wei, Pan Wei, Li Xiu-Mei
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  • Received Date:  10 March 2005
  • Accepted Date:  26 April 2005
  • Published Online:  20 September 2005

Effect of microstructure on the coercivity of Fe40—45Cr30—35Co20—25Mo0—4Zr0—2 alloy

  • 1. 钢铁研究总院功能材料研究所,北京 100081

Abstract: We have studied the magnetic properties, microstructure, and mechanical properti es of a high-coercivity FeCrCo alloy. Based on the experiments, the high-coerciv ity can be obtained by selecting suitable composition and heat treatment process . According to the TEM and XRD results, we drew a conclusion that the main eleme nt and the minor metallic dopants control effectively the conformation of phases . Thermomagnetic treatment induces the separation of the ferromagnetic and param agnetic phases, and a spinodal structure forms that results in magnetic-hardenin g. The large composition contrast between the two phases could improve the coer civity of the FeCrCo alloy obviously

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