摘要
用光学显微镜、电子显微镜、图像仪、X 射线衍射相分析、热差分析等综合方法,研究了WC-(Ni-Fe)系合金,在 WC 含量(质量分数为6%～38%)范围内的伪二元系相图特征.同时研究了 WC 在 y 相中的最高溶解度和室温溶解度数据.结果表明,WC-(Ni-Fe)伪二元系相图仍属于典型的二元共晶型相图,y 相中的溶解度随温度而变化,共晶温度下最大溶解度(质量分数)为11.2%,室温时最大溶解度为9.01%.
The characteristics of local phase diagram in WC-(Ni-Fe)pseudo binary system were studied by means of optical microscope,SEM,X-ray diffraction and thermal-analysis.The maximum solubility and the solubility at room temperature of WC in γphase were also measured.The results show that WC-(Ni-Fe)pseudo binary system is still a typical WC-(Ni-Fe)eutectic phase diagram.The eutectic temperature is 1419℃.The solubility of WC in γ phase varies with temperature.The maximum solubility at eutectic temperature is 11.2% and the solubility at room temperature is 9.01%.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
1998年第4期321-325,共5页
Journal of University of Science and Technology Beijing
基金
国家"863"资助项目
关键词
硬质合金
相图
伪二元合金系
溶解度
hard alloy
phase diagram
pseudo-binary system
solubility
