Influence of Ru on the hardness and fracture toughness of WC-VC-Co alloys

被引：22
|
作者：
Chipise, L. [1 ,3 ]
Jain, P. K. [2 ,3 ]
Cornish, L. A. [1 ,3 ]
机构：
[1] Univ Witwatersrand, DST NRF Ctr Excellence Strong Mat, Sch Chem & Met Engn, Private Bag 3, ZA-2050 Johannesburg, South Africa
[2] Univ Botswana, Phys Dept, Private Bag, Gaborone 0022, Botswana
[3] AMSEN, Johannesburg, South Africa
来源：
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2018年 / 77卷
关键词：
CEMENTED CARBIDES; GRAIN-SIZE; MECHANICAL-PROPERTIES; TUNGSTEN CARBIDE; HARDMETALS; MICROSTRUCTURE; DEFORMATION; INDENTATION; ADDITIONS; POWDERS;
D O I：
10.1016/j.ijrmhm.2018.07.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of Ru additions on the hardness and fracture toughness of WC-VC-Co alloys were investigated on the following compositions: 80WC-10VC-(10-x)Co-xRu (0 <= x <= 3) (wt%), (89.6-x)WC-10Co-0.4VC-xRu (0 <= x <= 2) (wt%), (89.2-x)WC-10Co-0.8VC-xRu (0 <= x <= 2) (wt%) and 89.6WC-(10-x)Co-0.4VC-xRu (0 <= x <= 3) (wt%). Hardness increased with increased Ru additions in all alloy series due to a combination of decreased grain size and increased solid solution strengthening. Ruthenium additions generally compromised fracture toughness, although there was improvement for some compositions.
引用
收藏
页码：54 / 60
页数：7
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