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Study on the influence of heat treatment process on the microstructure and hardness of carburized layer of 20CrMoH steel
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Study on the influence of heat treatment process on the microstructure and hardness of carburized layer of 20CrMoH steel
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Journal Article
Study on the influence of heat treatment process on the microstructure and hardness of carburized layer of 20CrMoH steel
2024
Overview
In this paper, the effects of different carburizing quenching processes and tempering processes on the depth of the hardened layer and microstructure of 20CrMoH were studied by means of hardness analysis and SEM microstructure analysis. The results show that: when the quenching temperatures in the range of 820-880 °C, it has little effect on the depth of the hardened layer. And the hardness value at the same depth is at a considerable level, which is not affected by the quenching temperature. When the tempering temperature range is 150-280 °C, the tempering temperature has a great influence on the depth of hardened layer. And with the gradual increase of tempering temperature, the depth of hardened layer decreases gradually. Also the hardness value at the same depth from the edge shows a monotonous decreasing trend with the gradual increase of tempering temperature.
Publisher
IOP Publishing
Subject
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