Effect of Heat Treatment on Structure and Properties of WC-Co Hardmetals
doi: 10.13374/j.issn1001-053x.1991.s2.006
Effect of Heat Treatment on Structure and Properties of WC-Co Hardmetals
-
摘要: Heat treatment changes the structure of the cobalt binder phase and the properties of the WC-Co hardmetals. The higher the cobalt content in the alloy is, the more effective the heat treatment is. The present work has found that the transformation of α-Co to ε-Co can be depressed by quenching the specimens in oil from 1000℃ and hence the transverse rupture strength of these specimens can be increased. During tempering the quenched specimens, new precipitated phases which have dispersion hardening effect on the cobalt binder phase have been observed.Abstract: Heat treatment changes the structure of the cobalt binder phase and the properties of the WC-Co hardmetals. The higher the cobalt content in the alloy is, the more effective the heat treatment is. The present work has found that the transformation of α-Co to ε-Co can be depressed by quenching the specimens in oil from 1000℃ and hence the transverse rupture strength of these specimens can be increased. During tempering the quenched specimens, new precipitated phases which have dispersion hardening effect on the cobalt binder phase have been observed.
-
Key words:
- heat treatment /
- cobalt binder phase /
- transformation
-
點擊查看大圖
計量
- 文章訪問數: 157
- HTML全文瀏覽量: 55
- PDF下載量: 5
- 被引次數: 0
下載:
