New binder phases for the consolidation of TiB2 hardmetals

被引：51

作者：

Gonzalez, R

Barandika, MG

Ona, D

Sanchez, JM

Villellas, A

Valea, A

Castro, F

机构：

[1] CTR ESTUDIOS & INVEST TECN GUIPUZCOA,DEPT MAT,SAN SEBASTIAN 20009,SPAIN

[2] ESCUELA INGN TECN IND,DEPT INGN QUIM & MEDIO AMBIENTE,BILBAO 48012,SPAIN

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1996年 / 216卷 / 1-2期

关键词：

binder phases; contaminants; secondary borides;

D O I：

10.1016/0921-5093(96)10408-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

New TiB2-based cermets have been consolidated by hot isostatic pressing of powder mixtures of TiB, and metallic alloys based on Fe, Ni and Co additions. Relevant thermodynamic aspects of the systems B-Ti-Ni, B-Ti-Fe and B-Ti-Co, essential for avoiding the formation of extremely brittle secondary borides, especially the secondary boride M(23)B(6), are discussed in this work. The role of contaminants like oxygen, carbon and nitrogen, which can also lead to the formation of these compounds is also explained. The hardness, toughness and cutting behaviour of the cermets produced with these new binder phases are comparable with the highest commercial WC-Co grades.

引用

页码：185 / 192

页数：8

共 18 条

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EFFECT OF OXYGEN CONTAMINATION ON DENSIFICATION OF TIB2 [J].