Study on the Microstructure Control and the Variation of Mechanical Properties of Pearlitic Steel

Abstract:

The effect of austenitizing temperatures and isothermal transformation temperatures on microstructure size and mechanical properties of 70 steel was studied. The experimental results show that the grain size increases with the increasing of austenitizing temperature. And the tensile strength increased with isothermal temperature decreasing. The grain size has a great influence on tensile strength. The strength increase of the samples with fine grain is greater than the samples with coarse grain. With the decreasing of isothermal temperature, the pearlite colony size and interlamellar spacing decreases and the reduction of area of the specimens increase.

• Periodical: Advanced Materials Research (Volume 988)
• Pages: 173-176
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.988.173
• Online since: July 2014
• Authors: Lun You Li, Yu Liang*, Ze Min Wei, Hu Xiong
• Keywords: Mechanical Property, Microstructure, Pearlitic Steel

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