高性能Ti(C,N)基金属陶瓷的制备与组织研究  

The Research on Preparation and Microstructure ofHigh Performance Ti(C,N) Based Cermet

作　　者：冉龙姣 周黎明 傅朝坤 李孟华 唐子琪 陈顺洪 RAN Longjiao;ZHOU Liming;FU Chaokun;LI Menghua;TANG Zhiqi;CHEN Shunhong(School of Mechanical Engineering,Chengdu University,Chengdu 610106,China;Sichuan Kun Tian Cemented Carbide Co.,Ltd.,Yibin 644001,China)

机构地区：[1]成都大学机械工程学院,四川成都610106 [2]四川坤天硬质合金有限责任公司,四川宜宾644001

出　　处：《成都大学学报（自然科学版）》2022年第4期401-407,共7页Journal of Chengdu University（Natural Science Edition）

基　　金：四川省粉末冶金工程技术研究中心开放课题(SC-FMYJ2020-10)。

摘　　要：采用特殊工艺进行了金属陶瓷材料原料粉体的氮化处理,并对粉体的氮化效果进行了SEM、XRD和EDS能谱分析,检测氮化制备出的(Ti,W,Mo)(C,N)固溶体粉末的固溶效果.采用该氮化预固溶粉体,17%Ni粉,8%Mo粉的添加方式进行了金属陶瓷刀片的烧结,并对烧结后的刀片断口形貌、组成成分、相关物理和力学性能进行了分析.结果表明,采用此氮化工艺烧结的Ti(C,N)基金属陶瓷材料,呈现出典型“芯—环”壳层结构,其“芯”部富含Ti元素,“环”部富Mo和W元素.该壳层结构显著提高了金属陶瓷材料的强韧性.因此,采用此氮化工艺烧结的Ti(C,N)基金属陶瓷料性能超过传统Ti(C,N)基金属陶瓷材料性能.The nitrogenization treatment for raw powder of metal ceramic material was carried out by special processing,and the nitriding effect of the powder was analyzed by SEM,XRD and EDS.Also the solid solution effect of(Ti,W,Mo)(C,N)solid solution prepared by nitriding treatment was detected.The sintering of the cermet metal blade was carried out by using the nitrided powder with 17%Ni powder and 8%Mo powder.And then the paper analyzed the fracture morphology,composition,related physical properties and mechanical properties of the blades after sintering.The results show the Ti(C,N)based ceramic material sintered by nitriding treatment has a typical core-ring phase,and the prepared cermet metal ceramic alloy exhibits a shell structure because the inside of the alloy is rich in Ti,while the outside is rich in Mo and W.Thus this structure improves the strength and toughness of cermet material.Briefly the results show that the robustness of the metal ceramic material sintered by the nitrided processing can achieve the level of the traditional Ti(C,N)based metal ceramic materials or even exceed it.

关 键 词：氮化处理 固溶体 金属陶瓷 微观组织结构 环形相 

分 类 号：TG148[一般工业技术—材料科学与工程]