Effects of Deformation Strains and Annealing Temperatures on Mechanical Properties of Martensitic Steels

Jong Chul Lee; Ui Gu Kang; Chang Suk Oh; Sung Joon Kim; Won Jong  Nam

doi:10.4028/www.scientific.net/MSF.654-656.218

Paper Titles

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A Pilot Rolling Mill Designed for High Strength Steels
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Cold Rolling and Annealing Microstructures and Textures of Low Carbon Steels
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Effects of Deformation Strains and Annealing Temperatures on Mechanical Properties of Martensitic Steels
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Analysis of Edge Crack of Thin Strip during Cold Rolling
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Study on New Model of Tension Process in Continuous Rolling
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Study on the Production of Ti Micro-Alloyed High Strength Hot Rolled Steel by CSP Process
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Hot Ductility of High Carbon Steel Produced by CSP
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HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Effects of Deformation Strains and Annealing...

Effects of Deformation Strains and Annealing Temperatures on Mechanical Properties of Martensitic Steels

Abstract:

The effects of deformation strains and annealing temperatures on microstructures and mechanical properties of martensitic steels were examined. The amount of cold deformation was changed as 30%, 50% and 60%, and annealing temperatures varied from 500°C to 600°C. In samples cold rolled 30%, the dominant microstructure for an annealing at 500°C was dislocation substructures with uniformly distributed rod-shaped carbide particles. For an annealing at 600°C, the microstructure consisted of equiaxed ultrafine grains, spherical carbide particles and elongated dislocation substructures. A proper annealing temperature for martensitic steels received 30% reduction, showing a good combination of a high strength, 1230MPa, and an adequate total elongation. 9.4%, was found as 500°C.

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Periodical:

Materials Science Forum (Volumes 654-656)

Pages:

218-221

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.218

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Online since:

June 2010

Authors:

Jong Chul Lee, Ui Gu Kang, Chang Suk Oh, Sung Joon Kim, Won Jong Nam

Keywords:

Annealing, Cold Rolling, Lath Martensite, Tensile Strength

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