Abstract:X20CrMoV12 1 steels were exposed at three different high temperatures and various
durations. Aging parameter, LMP s, was used to describe long-term thermal history. Creep rupture, hardness and tensile tests for aged X20CrMoV12 1 steels were carried out. Yield strength was slightly decreased and hardness was rapidly decreased afterLMP s reached 20.6. Creep strength of aged X20CrMoV12 1 steel decreased rapidly after the LMPs reached 20.6. It was shown that the creep strength decreased due to the coarsening of a… Show more
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