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Volume 15 Issue 1
Oct.  2021
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Article Contents
Liu Guoquan, Cui Wenxuan, Jiang Hai, Qin Ruikai, Zhang Wanshan. Structure-Property Relationships in a Heat-Treated Weldable Steel[J]. Chinese Journal of Engineering, 1993, 15(1): 73-81. doi: 10.13374/j.issn1001-053x.1993.01.013
Citation: Liu Guoquan, Cui Wenxuan, Jiang Hai, Qin Ruikai, Zhang Wanshan. Structure-Property Relationships in a Heat-Treated Weldable Steel[J]. Chinese Journal of Engineering, 1993, 15(1): 73-81. doi: 10.13374/j.issn1001-053x.1993.01.013

Structure-Property Relationships in a Heat-Treated Weldable Steel

doi: 10.13374/j.issn1001-053x.1993.01.013
  • Received Date: 1992-06-17
    Available Online: 2021-10-18
  • A785MPa-grade weldable HSLA steel (HQ80C) with Cr, Ni, Mo, V, Ti, and B has been experimentally studied to determine quantitative relationships between properties (strength and toughness) and microstructures. It has been found that the ductile-brittle transition temperature (50%FATT) varies linearly with the mean intercept of martensitic packets. An empiric equation has been established to predict the yield strength of the as quenched and tempered steel; the relative deviation of the predicted yield strength values from the experimental ones are all less than 3% when the steel was tempred at 500 to 700℃.

     

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      沈陽化工大學材料科學與工程學院 沈陽 110142

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