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Metals 2017, 7(1), 12; doi:10.3390/met7010012

Microstructural and Mechanical Characteristics of Novel 6% Cr Cold-Work Tool Steel

1
Advanced Steel Processing and Products Research Center, Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO 80401, USA
2
Division of Advanced Materials Engineering, Research Center for Advanced Materials Development, Chonbuk National University, Jeonju 561-756, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Klaus-Dieter Liss
Received: 8 September 2016 / Revised: 16 December 2016 / Accepted: 3 January 2017 / Published: 6 January 2017
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Abstract

We investigated a new cold-work tool steel with a low Cr content of 6 wt. % which was designed based on thermodynamic calculation to minimize the formation of primary carbide. A smaller particle size and a smaller volume fraction of carbides were observed in this 6% Cr steel. Superior mechanical properties in terms of hardness, impact toughness, tensile strength, and total elongation were achieved in this steel, due to fine secondary carbides precipitated during tempering. These carbide particles were M6C and (Mo,V)C carbides with a diameter below 100 nm. View Full-Text
Keywords: cold-work tool steel; alloy design; carbide formation; tempering cold-work tool steel; alloy design; carbide formation; tempering
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kang, S.; Kim, M.; Lee, S.-J. Microstructural and Mechanical Characteristics of Novel 6% Cr Cold-Work Tool Steel. Metals 2017, 7, 12.

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