• Title/Summary/Keyword: exponent of cyclic plastic strain

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A Study of Low Cycle Fatigue Properties in CR60,SM50Q Steel and the Weldments (CR60강, SM58Q강과 그 용접부의 저사이클 피로특성)

  • 김창주;염태동;유인석;위창욱
    • Journal of Welding and Joining
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    • v.12 no.1
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    • pp.73-79
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    • 1994
  • Low cycle fatigue test was performed by companion specimens method to compare the properties of cyclic strain for the weldments of controlled rolling steel CR60 and welding structural steel SM58Q. And the result does not showed any difference of low cycle fatigue life between weldments. Especially, the values of coefficient of cyclic plastic strain $C_{p}$ and exponent of cyclic plastic strain $K_{p}$ of heat affected zones of CR60 steel and SM58Q steel were same. And $C_{p}$ and $K_{p}$ of CR60 steel were equal to the values of weld it means a good combination between the base metal, the heat affected zone and the weld of CR60 steel.eel.eel.

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