Indentation Characterization Method for Hardness of Surface-modified Layer
[1]Xu Guangtao,Sun Bo,Chen Haikuan,et al.Indentation Characterization Method for Hardness of Surface-modified Layer[J].Journal of Zhengzhou University (Engineering Science),2021,42(04):58-62.[doi:10.13705/j.issn.1671-6833.2021.04.017]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
42
Number of periods:
2021 04
Page number:
58-62
Column:
Public date:
2021-07-30
- Title:
- Indentation Characterization Method for Hardness of Surface-modified Layer
- CLC:
- -
- Abstract:
- In order to measure the hardness parameters of the surface-modified layer(SML)of key components after surface modification,in this paper a method to characterize the hardness of the SML was proposed.According to the relationship between hardness and depth,continuous indentation loading was used to characterize the hardness of the SML.The SML-substrate model was established through ANSYS finite element simulation,and continuous indentation was applied to verify that the calculation hardness was very close to the real hardness.Carburizing heat treatment was performed on 18CrNiMo7-6 alloy steel to produce a SML on the surface,and the hardness of the SML of the heat-treated 18CrNiMo7-6 alloy steel was characterized by this method.Compared with the micro hardness results characterized along the side of the SML,it was found that the hardness error of the SML obtained by the two methods was no more than 6%.This method could be used to characterize the real hardness of the SML on the surface of the material,and had certain engineering application value.
- References:
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Last Update:
2021-08-26
