1Cr11Ni2W2MoV不锈钢真空渗碳工艺试验

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Abstract：This study aims to investigate the effects of carburizing temperature on the microstructure and performance of 1Cr11Ni2W2MoV stainless steel during Vacuum carburizing. The microstructural characteristics of the material aftercarburizing were analyzed using a metallographic microscope，surface hardness was measured with a Vickers hardnesstester，and hardness gradients after carburizing and quenching under different temperature conditions were evaluated using a microhardness tester.The results show that at a carburizing temperature of 950°C the microstructure primarily consists of dispersed granular carbides，with uniform distribution and a smoother hardness gradient after quenching.The bonding strength between thecarburized layer and the substrateis high，and the amount of network carbides is relatively low，though surface hardness is slightly lower.At 1000∘C ，while the carburizing time is significantly reduced，the carburized layer exhibits pronounced grain coarseninganda notable increase in the content of network carbides.After quenching，and surface hardness is higher.

Keywords： vacuum carburizing; 1Cr11Ni2W2MoV stainless steel; carburizing temperature; microstructure; properties

1序言

1Cr11Ni2W2MoV是一种马氏体热强型不锈钢，因其具有优异的抗拉强度和耐蠕变性能，以及良好的塑韧性、抗氧化性和耐蚀性，被广泛应用于发动机和航空航天设备。（剩余5165字）