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- Title
强化研磨对 GCr15 轴承钢耐蚀性的影响.
- Authors
吴俊; 梁忠伟; 刘晓初; 吴子轩; 范立维
- Abstract
The GCrl5 bearing steel is processed by changing the jet angle of strengthened grinding, and the salt spray corrosion test is carried out. The corrosion mechanism is analyzed by combining the corrosion kinetics curves, Fourier infrared spectroscopy, corrosion micro - morphology and three - dimensional morphology. The results show that: n value of strengthened grinding sample is 0. 723 8 after salt spray corrosion test, and the and the proportion of γ - FeOOH in corrosion products is relatively low, indicating that the corrosion product layer of strengthened grinding sample has better protection performance for matrix material; with the increase of jet angle of strengthened grinding, the corrosion resistance of the sample becomes better, the surface of sample gradually changes from uniform corrosion to edge pitting, and the corrosion rate of sample gradually decreases; when the jet angle of strengthened grinding is 90°, the corrosion rate of GCr15 bearing steel is 0. 060 4 mm/a, the corrosion resistance grade is 5, and the corrosion rate is much lower than that of unstrengthened grinding sample, indicating that the strengthened grinding process is able to make the workpiece have better corrosion resistance.
- Publication
Bearing, 2023, Issue 12, p57
- ISSN
1000-3762
- Publication type
Article
- DOI
10.19533/j.issn1000-3762.2023.12.009