30CrMo钢表面脱碳试验

doi:10.13228/j.boyuan.issn0449-749x.20150570

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摘要在实验室模拟CSP工艺的加热条件，对30CrMo钢进行试验，用金相法测量脱碳层厚度，用失重法对30CrMo钢的氧化层厚度进行估算，结合氧化烧损研究了加热温度和保温时间对30CrMo钢的实际脱碳层厚度的影响规律。结果表明，在试验气氛为（体积分数，%）CO216.5、O20.8、H2O13、N269.7，加热温度范围为1 000～1 150 ℃时，30CrMo钢的实际脱碳层厚度随着加热时间的增加而增加，低于1 050 ℃时，脱碳层厚度随着温度升高而增加，高于1 050 ℃时，脱碳层由于氧化加剧而减少，1 050 ℃为脱碳敏感温度。

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	戴成珂

关键词 ： 30CrMo, 脱碳, 氧化

Abstract：An experiment simulating the heating environment of CSP furnace was performed for 30CrMo steel. The decarburization layer depth was measured by micrographic method. And the oxide layer thickness was calculated by method of weight loss. The effect of heating temperature and holding time on the 30CrMo steel decarburization layer depth was studied combined with oxidation loss. The results show the decarburization layer depth increases gradually with increasing the holding time when sample is heated at 1 000-1 150 ℃ under the experimental atmosphere (volume percent，%)CO216.5，O20.8，H2O13，N269.7. The decarburization layer depth increases gradually with increaseing the heating temperature below 1 050 ℃. The layer depth gradually decreases when the temperature is over 1 050 ℃ due to the severe oxidation. The decarburization layer depth reaches the peak at 1 050 ℃.

Key words： 30CrMo decarburization oxidation

收稿日期: 2015-11-25 出版日期: 2016-07-11

引用本文:

戴成珂，赵刚，徐耀文，毛新平，韩斌，蔡珍. 30CrMo钢表面脱碳试验[J]. 钢铁, 2016, 51(7): 60-64. DAI Cheng-ke，ZHAO Gang，XU Yao-wen， MAO Xin-ping，， HAN Bin， CAI Zhen. Experiment on surface decarburization of 30CrMo steel. Iron and Steel, 2016, 51(7): 60-64.

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