Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 527, Issue 4-5, Pages 1048-1051Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2009.09.021
Keywords
Sodium nitrate; Nitriding; IF steel; Hardness; Tensile properties
Categories
Funding
- Advanced Technology Center [2008-10031476]
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A study has been made of nitriding of interstitial-free steel sheet specimens in the sodium nitrate bath. The nitriding rate increased when the bath contained a small amount of sodium chloride and calcium chloride. Accordingly, the tensile strengths and hardness values of the steel specimens nitrided in the chloride containing bath were higher than those of the same steel specimens nitrided in the pure nitrate bath when the nitriding time and temperature were controlled so that the excessive formation of brittle compound Fe4N could be prevented. (C) 2009 Elsevier B.V. All rights reserved.
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