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Effects of boron Addition on Tempering Processes in an Fe-9Cr-0.1C Alloy Martensite

机译:硼对Fe-9Cr-0.1C合金马氏体回火过程的影响

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The effects of boron addition on the tempering processes of 0.1C-9Cr martensite have been studied. The alloys with and without 98ppm boron were prepared. The specimens austenitized at 1200deg. C for 1.2 Ks were quenched into iced brine. The structure was consisted of a' martensite laths. They were heated at 10 deg. C/min to 900 deg. C. temperature derivative of electric resistivity, dp/dT, exhibited small increase at temperature around 740 deg. C (reaction A), gradual decrease at temperatures between 750 deg.C and 800 deg. C (reaction B), large decrease at around 815 deg. C (reaction C) and small increase at around 830 deg. C (reaction D).
机译:研究了硼对0.1C-9Cr马氏体回火过程的影响。制备具有和不具有98ppm硼的合金。标本在1200度奥氏体化。将1.2Ks的C淬灭到冰盐水中。结构由马氏体板条组成。将它们加热到10℃。 C / min至900摄氏度电阻率的温度导数dp / dT在740度左右的温度下显示出很小的增加。 C(反应A),温度在750摄氏度至800摄氏度之间逐渐降低。 C(反应B),在815度左右大幅降低。 C(反应C),并在830度左右小幅增加。 C(反应D)。

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