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Fe-C-Mo合金中温转变后期的研究

徐启昆 , 王东亚

金属学报

本文研究了Fe-C-Mo合金在其动力学B_s点附近(海湾区)长时期等温转变过程形成的组织.发现合金在转变后期贝氏体铁素体片块长大的同时,以形成一种粒状形态的共析产物而完成其中温转变.透射电镜研究确定粒状共析组织中的碳化物是(FeMo)_3C,不同于片块贝氏体铁素体内的碳化物Mo_2C.

关键词: Fe-C-Mo合金 , intermediate transformation , kenetics

INVESTIGATION ON LATER STAGE OF INTERMEDIATE TRANSFORMATION IN Fe-C-Mo ALLOYS

XU Qikun WANG Dongya Chongqing University , Chongqing , China XU Qikun , Dept.of Metallurgy and Materials Engineering , Chongqing University , Chongqing , Sichuan , China

金属学报(英文版)

The transformation process and the products of long term isothermal transformation around the kinetic B_s temperature(the bay temperature in TTT diagram)in Fe-C-Mo alloys have been investigated.It was found that,at the final stage of intermediate transformation,a kind of granular structure formed accompanying the growth of bainitic ferrite.In comparison with the carbide Mo_2C in the bainitic ferrite plates or blocks,the carbide m granular eutectoid has been determined to be cementite containing a tiny bit of molvbdenum,(Fe,Mo)_3C.

关键词: allot Fe-C-Mo , null , null , null

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