AISI S1 Tool Steel after Deep Cryogenic Treatment: Tensile Properties and Microstructure
Keyvan Seyedi Niaki,
Seyed Ebrahim Vahdat
Issue:
Volume 4, Issue 2-1, April 2015
Pages:
1-8
Received:
3 December 2014
Accepted:
4 December 2014
Published:
18 January 2015
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.
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 tes...
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Design of Metal Matrix Composite with Particle Reinforcement
Issue:
Volume 4, Issue 2-1, April 2015
Pages:
9-13
Received:
4 December 2014
Accepted:
5 December 2014
Published:
18 January 2015
Abstract: Using the methods which are applied for estimating strength and toughness of composites reduces trial-and-error rate in their design. One of the mechanisms for strengthening and increasing toughness of composites is through debonding mechanism. Interface strength of reinforcement with matrix and effective surface of debonding greatly affect toughness and strength of these types of materials. In this study, a model was proposed to estimate the effect of interface and matrix strength of composites in increasing tensile toughness and strength. Then, interface strength and its effect in increasing tensile toughness and strength were calculated in a case study of composites containing particle reinforcement in matrix of steel.
Abstract: Using the methods which are applied for estimating strength and toughness of composites reduces trial-and-error rate in their design. One of the mechanisms for strengthening and increasing toughness of composites is through debonding mechanism. Interface strength of reinforcement with matrix and effective surface of debonding greatly affect toughne...
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