20CrMnMo钢的晶粒度稳定性试验研究

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Abstract: From microallying and post forging heat treatment optimization,multiple experiments on the grain size stability of 20CrMnMo steel under pseudo carburizing conditions (940℃/36 hours) were conducted in this paper. The experimental resultsshow that,on the basis of containing a certain amount ofN,the grain size stability of thetestmaterialwithonlyAladdedissignificantlybetterthanthatof thetestmaterialwithbothNbandAladded simultaneously; By optimizing the post forging heat treatment process,the non-equilibrium microstructure after forging can be improved toa balanced microstructure,eliminating structure heredity,which can effectively refine the grains and improve the grain size stability.

Keywords:2OCrMnMo steel; grain size stability; microaloying; non-equilibrium microstructure; AIN

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20CrMnMo是一种高级渗碳钢,常用于制造高硬度、高强度和高韧性的重要齿轮部件。(剩余4217字)

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