颗粒型复合材料金属陶瓷的研究

Study On Particle Composite Material-Cermets

研究了高镍金属陶瓷的力学性能与碳及碳化钨含量之间的关系，揭示了金属陶瓷的性能与组成、两相区、显微组织之间的联系。结果表明：横向断裂强度和硬度与合碳量关系出现双峰规律；合碳量为０，组织中出现η相，性能降低；合碳量大于１．３％，组织中出现游离石墨，性能变坏，具有两相组织的金属陶瓷．力学性能最好。随ＷＣ加入量增加，横向断裂强度不断增加，ＷＣ加入量大于１５％，硬度急骤降低。

The relation ships among the mechan ical properties,the content of carbon elementand WC in cermets with high content of nickel havebeen studied in the paper. The relationships among corn position, dualphase zone,microstructure and mechanical properties have also beendenoted .This work procidea thoretical basis for producing high gualitycormets.