一种钴铬钽合金及其制备方法

任富增; 赵璨璨; 储康杰

任富增

南方科技大学

南方科技大学

518000 广东省深圳市南山区西丽学苑大道1088号

南方科技大学

518000 广东省深圳市南山区西丽学苑大道1088号 (广东,深圳,南山区)

南方科技大学

518000 广东省深圳市南山区西丽学苑大道1088号 (广东,深圳,南山区)

CN201811258771.5

2018-10-26

CN109161729B

2020-12-08

2020-12-08

授权

2020-12-08

授权发明

第一

本发明涉及一种钴铬钽合金及其制备方法，所述钴铬钽合金为以ε相为基体相，laves相为强化相；按质量百分含量计，所述合金由以下组分组成：铬20‑35％，钽5‑20％，余量为钴。本发明利用高能球磨+放电等离子体烧结的方式制得了上述超细晶钴铬钽合金，该合金材料硬度高达400‑950HV，压缩强度为1‑2.5Gpa，常温下与氧化铝磨盘对磨的磨损率为1.5‑3×10‑5mm3N‑1m‑1，600℃下与氧化铝磨盘对磨的磨损率为0.6‑3×10‑4mm3N‑1m‑1，与传统钴基高温耐磨合金相比，具有更高的高温稳定性、强度、硬度及更优的耐磨性，具有良好的应用前景。

The invention relates to a cobalt-chromium-tantalum alloy and a preparation method thereof. According to the cobalt-chromium-tantalum alloy, an epsilon phase is taken as a matrix phase and a laves phase is taken as a strengthening phase; the alloy comprises the following components by mass percentage: 20-35% of chromium, 5-20% of tantalum and the balance of cobalt. The ultrafine cobalt-chromium-tantalum alloy is prepared by means of high energy ball milling and discharge plasma sintering, the hardness of the alloy material is as high as 400-950 HV, the compressive strength is 1-2.5 Gpa, the wear rate of the alloy material wearing off against an aluminum oxide abrasive disc at normal temperature is 1.5-3*10mmNm, the wear rate of the alloy material wearing off against an aluminum oxide abrasive disc at the temperature of 600 DEG C is 0.6-3*10mmNm, and compared with the traditional cobalt-based high-temperature wear-resistant alloy, the cobalt-chromium-tantalum alloy is higher in high-temperature stability, strength and hardness and better in wear resistance, and has an excellent application prospect.

C22C1/0433 ; C22C19/07 ; C22C30/00

C22C19/07 ; C22C30/00 ; C22C1/04

（+PATENT GRANT）[2020-12-08][CN]

1

1

潘登

北京品源专利代理有限公司

PatSnap

任富增,赵璨璨,储康杰. 一种钴铬钽合金及其制备方法[P]. 2020-12-08.