XUE Gang, GONG Xuhui. Factors Influencing Crack Arrest Toughness Kca of High Strength Thick Plate[J]. Development and Application of Materials, 2018, 33(1): 1-6. DOI: 10.19515/j.cnki.1003-1545.2018.01.001
Citation: XUE Gang, GONG Xuhui. Factors Influencing Crack Arrest Toughness Kca of High Strength Thick Plate[J]. Development and Application of Materials, 2018, 33(1): 1-6. DOI: 10.19515/j.cnki.1003-1545.2018.01.001

Factors Influencing Crack Arrest Toughness Kca of High Strength Thick Plate

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  • Received Date: August 09, 2017
  • Available Online: March 17, 2024
  • Relations between crack arrest toughness Kca at-10℃ and carborn equivalent carbon equivalent, grain size GS, phosphorus content w (P) and thickness t of high strength thick plate were analyzed by 26 groups of test data.Results indicate that Ceq, grain size, phosphorus content and crack arrest roughness Kca at -10℃ are correlative. Kca at -10℃ increases with the increasing of Ceq and grain size and the decreasing of phosphorus content and thickness. The regression equation of carborn equivalent Ceq, grain size GS, phosphorus content w (P), thickness and Kca at -10℃ is proposed based on the results above:Kca-10=23 443.45·Cep+ 276.51·GS-0.77·w (P) ·t3-2.75·t1.5.
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