| ZHENG Ying.Comparative Study on Wear Resistance of High Carbon Quenching and Double Glow Plasma Chromizing[J],46(4):186-190 |
| Comparative Study on Wear Resistance of High Carbon Quenching and Double Glow Plasma Chromizing |
| Received:September 11, 2016 Revised:April 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.04.030 |
| KeyWord:double glow plasma chromizing abrasive wear abradability |
| Author | Institution |
| ZHENG Ying |
Hunan Communication Polytechnic, Changsha , China |
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| Abstract: |
| To study wear resistance of chromizing layer of double glow plasma chromizing in phase transformation point under abrasive wear. Low temperature double glow plasma chromizing etc. were adopted to form a chromizing layer directly on the high-carbon steel surface. The abrasive resistance of abrasive wear in integral quenching of T10 steel + low temperature tempering (shorted as T10 quenching) and T10 pre-nitriding at 550 ℃×8 h+560 ℃×4 h chromizing (shorted as T10 steel low temperature chromizing) was studied comparatively. In the wearing condition of 400# sand paper, the area ratio of wear mass loss of T10 low temperature chromizing was 2.9936×10-4 g/mm2; that of the T10 quenching was 3.5669×10-5 g/mm2; it was far less than that of T10 low temperature chromizing; its wear resistance was nearly 7 times of the T10 quenching; in the wearing condition of 2000# sand paper, the area ratio of wear mass loss of T10 quenching was 1.2739×10-5 g/mm2; that of the T10 low temperature chromizing was 6.3694×10-6 g/mm2 , it was much less than that of T10 integral quenching; the wear resistance of T10 low temperature chromizing was 2 times of the T10 quenching. The chromizing layer of low temperature double glow plasma is applicable to small abrasive wear, and abrasive particle size must be less than or equal to size of chromizing layer. |
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