材料期刊网

1. 首页
2. 检索结果页

原词结果 | 译词结果

奥氏体化温度对4330M钢晶界上杂质偏聚的影响

史群星 , 吴建生 , 林栋梁

金属学报

用Auger谱仪研究了奥氏体化温度对4330M钢晶界上杂质偏聚的影响,并对偏聚量进行了定量计算。结果表明:奥氏体化温度不同,杂质偏聚量也不同,指出了McLean平衡偏聚理论关系式 C_g=AC_0exp[Q/RT]的局限性

关键词: 4330M钢 , impurity segregation , sulphur , austenitizing temperature

硅芯制备技术及对沉积多晶硅棒杂质的影响

史冰川 , 董俊 , 李昆 , 黄磊 , 亢若谷 , 邱建备

材料科学与工程学报 doi:10.14136/j.cnki.issn 1673-2812.2016.03.037

本文介绍了改良西门子法多晶硅生产中的硅芯制备技术,包括区熔法硅芯制备技术和切割法硅芯制备技术.简要介绍了两种硅芯制备技术的工艺流程,并对两种不同技术路线制备硅芯过程中的杂质分凝、挥发及坩埚污染进行了比较.根据分析结果,采用区熔硅芯能在一定程度上降低硅芯对硅棒的杂质贡献.

关键词: 硅芯 , 杂质分凝 , 杂质挥发 , 坩埚污染

INFLUENCE OF AUSTENITIZING TEMPERATURE ON IMPURITY SEGREGATION ALONG GRAIN BOUNDARIES IN STEEL 4330M

SHI Qunxing Luoyang Ship Material Research Institute , Luoyang , ChinaWU Jiansheng LIN Dongliang Shanghai Jiaotong University , Shanghai , China

金属学报(英文版)

The effect of austenitizing temperature on segregation of impurities along grain boundaries in steel 4330M has been examined by AES.The impurity segregation was computed quantitatively.Results showed that the quantity of impurity segregation changed with the austenitizing temperature.The limitation of the McLean′s expression for equilibrium segrega- tion was discussed.

关键词: steel 4330M , null , null , null

INTERGRANULAR EMBRITTLEMENT IN PLASMA CARBURIZED LAYER

XIA Lifang MA Xinxin Harbin Institute of Technology , Harbin , China

金属学报(英文版)

This paper deals with the cause of intergranular fracture occurred in the retained austenitic region in plasma carburized layer.The results show that the presence of retained austenite, which has a good effect on the impact toughness,has no relation to this embrittlement.Analy- sis by Auger electron spectroscopy shows that the impurities S and P segregate at the grain boundaries is the main reason of the intergranular embrittlement in carburized layer. However,the segregation of P and S can be removed by reheating and quenching treatment.

关键词: plasma carburizing , null , null , null

出版年份

刊物分类

相关作者

相关热词