Low-Cobalt Superhard High Speed Steel with Fine Grindablity-Co3N Series

Chen Jingrong; Ma Shicai; Gao Desheng; Liu Yu; Pan Xiaoquan

doi:10.13374/j.issn1001-053x.1993.01.006

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Chen Jingrong, Ma Shicai, Gao Desheng, Liu Yu, Pan Xiaoquan. Low-Cobalt Superhard High Speed Steel with Fine Grindablity-Co3N Series[J]. Chinese Journal of Engineering, 1993, 15(1): 31-37. doi: 10.13374/j.issn1001-053x.1993.01.006

Citation:

Chen Jingrong, Ma Shicai, Gao Desheng, Liu Yu, Pan Xiaoquan. Low-Cobalt Superhard High Speed Steel with Fine Grindablity-Co3N Series[J]. Chinese Journal of Engineering, 1993, 15(1): 31-37. doi: 10.13374/j.issn1001-053x.1993.01.006

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Low-Cobalt Superhard High Speed Steel with Fine Grindablity-Co3N Series

doi: 10.13374/j.issn1001-053x.1993.01.006

1. University of Science and Technology Beijing;
2. Dalien Steel Plant;
3. Daye Steel Plant

Received Date: 1992-06-20
Available Online: 2021-10-18

Abstract

Abstract

The investigation about influence of cobalt on properties of superhard W-Mo and Mo system high speed steel (HSS) containing 1% V had observed that the secondary hardness rised with the increasing of cobalt, and the strength and toughness could be increased in the range of 3%~5% Co. When cobalt content arrived to 8%, the brittleness would be appeared. A new type of superhard high speed steel, Co3N, with low cobalt content and the same hardness,red-hardness, strength, toughness and erindability of M42, was developed.
- high speed steel,
- cobalt,
- tool materials