AISI S1 Tool Steel after Deep Cryogenic Treatment: Tensile Properties and Microstructure
Advances in Materials
Volume 4, Issue 2-1, April 2015, Pages: 1-8
Received: Dec. 3, 2014; Accepted: Dec. 4, 2014; Published: Jan. 18, 2015
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Authors
Keyvan Seyedi Niaki, Department of Mechanical Engineering, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
Seyed Ebrahim Vahdat, Department of Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
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Abstract
Successful employment of advanced tool steel in engineering applications is related to its ability in terms of meeting service life requirements and fabrication with proper dimensions. Deep cryogenic treatment may be used to produce advanced tool steel by simultaneously increasing toughness, strength, and hardness. Twelve sets of specimens were tested, 9 of which were deep cryogenic treated and then tempered. Tensile properties, hardness, X-ray diffraction, and scanning transmission electron microscopy were applied for macroscopic and microscopic investigations. The best results of simultaneous improvement in tensile toughness, hardness, and strength were obtained for 36 h soaking and 1 h tempering times.
Keywords
Hardness, STEM, Strength, Tensile Toughness, XRD
To cite this article
Keyvan Seyedi Niaki, Seyed Ebrahim Vahdat, AISI S1 Tool Steel after Deep Cryogenic Treatment: Tensile Properties and Microstructure, Advances in Materials. Special Issue:Advanced Tool Steels. Vol. 4, No. 2-1, 2015, pp. 1-8. doi: 10.11648/j.am.s.2015040201.11
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