摘要
采用电子探针及X射线衍射仪测定了可锻铸铁白口组织中硅的分布和硅对渗碳体点阵参数的影响。结果表明:硅在共晶渗碳体和珠光体界面处富集,少量硅进入共晶渗碳体中;提高含硅量,界面处硅的富集量及进入共晶渗碳体中的硅量增加,使渗碳体点阵参数及晶胞体积增大。最后讨论了硅对渗碳体稳定性的影响。
The distribution of silicon in as-cast white iron was studied using electron probe microanalysis. Effect of silicon on lattice constant of the cementite was also studied using X-ray diffraction.The results showed : in the as-cast white iron there was the enrichment of silicon between the eutectic cementite and pearlite. Silicon presented in eutectic cementite with the increase of silicon content, the enrichment and silicon content in the eutectic cementit increased.The increase of silicon caused the increase .of lattice constant and volume in the eutectic cementite.Last the effect of silicon on the stabilization of carbide was discussed.
出处
《现代铸铁》
CAS
1993年第1期3-6,共4页
Modern Cast Iron
基金
中国有色金属总公司测试基金
