【摘要】 本文利用近代测试技术对高碳钢渗硼层及其过渡区的相组成进行综合测试分析,实验结果表明:在渗硼层的表层除硼化物外还有微量的 Fe₃（CB）或 Fe₃C 存在;在过渡区除有Fe_s（CB）和 Fe₃C 外还有少量的 Fe₂₃（CB）₆存在。并结合 Fe-C-B 三元合金平衡相图对渗硼层的形成机理做了探讨,认为在非平衡条件下渗硼层的形成机理基本上符合反应扩散原理。更多还原

【Abstract】 In this paper,the phase composition in both boriding layer andtransition region of borided high carbon steel is determened and analysed bymeans of advanced detection devices.The test result shows that there areboride phases with Fe₃（CB）or Fe₃C in a few quantities in the surface layer,and Fe₃（CB）and Fe₃ C with a few Fe₂₃（CB）₆ phase are found in the transitionregion.According to the test result and Fe-C-B equilibrium diagram,theformation mechanism of boriding layer is discussed and considered fundamen-tally as diffusion reacting process under nonequilibrium condition.更多还原