This study examines the influence of different sub-zero processing routes on microstructure and mechanical properties of a cold work tool steel. Incorporation of controlled sub-zero processing cycle in between hardening and tempering treatment of tool steels increases the amount of ultrafine carbide particles with improved homogeneous distribution in addition to reduction in retained austenite content; these modifications are found to be enhanced with decreasing lowest temperature of the sub-zero processing cycle. It has been demonstrated that with reference to conventional heat treatment, sub-zero processing moderately improves hardness and marginally reduces fracture toughness but substantially enhances wear resistance of the selected steel; the extent of variations, in general, increase in the order of cold treatment, shallow cryogenic treatment and deep cryogenic treatment. The relationships of microstructural modifications with the variations of mechanical properties of tool steels due to different sub-zero processing have been established.
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ASME 2013 International Mechanical Engineering Congress and Exposition
November 15–21, 2013
San Diego, California, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5618-5
PROCEEDINGS PAPER
Structure and Property of Sub-Zero Processed Cold Work Die Steel
Debdulal Das,
Debdulal Das
Bengal Engineering and Science University, Shibpur, Howrah, WB, India
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Kalyan K. Ray,
Kalyan K. Ray
Indian Institute of Technology, Kharagpur, Kharagpur, WB, India
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Apurba K. Dutta
Apurba K. Dutta
Bengal Engineering and Science University, Shibpur, Howrah, WB, India
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Debdulal Das
Bengal Engineering and Science University, Shibpur, Howrah, WB, India
Kalyan K. Ray
Indian Institute of Technology, Kharagpur, Kharagpur, WB, India
Apurba K. Dutta
Bengal Engineering and Science University, Shibpur, Howrah, WB, India
Paper No:
IMECE2013-63102, V02AT02A038; 10 pages
Published Online:
April 2, 2014
Citation
Das, D, Ray, KK, & Dutta, AK. "Structure and Property of Sub-Zero Processed Cold Work Die Steel." Proceedings of the ASME 2013 International Mechanical Engineering Congress and Exposition. Volume 2A: Advanced Manufacturing. San Diego, California, USA. November 15–21, 2013. V02AT02A038. ASME. https://doi.org/10.1115/IMECE2013-63102
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