采用销盘式高温摩擦磨损试验机，对不同显微组织的4Cr5MoSiV1钢在25℃和400℃下进行了干磨损试验，研究了显微组织对其耐磨性的影响，并探讨了磨损机制。研究结果表明，4Cr5MoSiV1钢在室温下主要为粘着磨损，其耐磨性不仅取决于材料的硬度，还与其断裂抗力有关；400℃时的磨损为氧化磨损，但已超越了Quinn型氧化轻微磨损，其耐磨性取决于材料的硬度、韧性以及热稳定性。室温耐磨组织应具有高的硬度和一定的断裂抗力，而高温耐磨组织应具有高的硬度和热稳定性及一定的韧性。
Dry wear tests were conducted on a pin-on-disc friction and wear tester for 4CrSMoSiV1 steel with various microstructure in atmospheric environment at room temperature （25 ℃） and 400 ℃. The effects of microstructure on wear resistance of the steel were studied and wear mechanisms were analyzed. The results show that wear mechanism at 25 ℃ for 4CrSMoSiV1 steel is adhesive wear. The wear resistance not only depends on hardness of the materials, but also is closely, related with its fracture resistance. The wear mechanism is oxidation wear at 400 ~C , but which is already beyond the mild Quinn type oxidation wear. The wear resistance is dominated by the hardness, toughness and thermal stability of materials. The wear-resistance microstructure at room temperature should have high hardness and a certain fracture resistance. While high thermal stability, high hardness, and a proper fracture toughness are essential to the wear- resistant mierostructure at elevated temperature.
参考文献
| [1] | G. Castro;A. Fernandez-Vicente;J. Cid .Influence of the nitriding time in the wear behaviour of an AISI H13 steel during a crankshaft forging process[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2007(7/12):1375-1385. |
| [2] | O. Barrau;C. Boher;R. Gras;F. Rezai-Aria .Analysis of the friction and wear behaviour of hot work tool steel for forging[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2003(7/12):1444-1454. |
| [3] | S.Q. Wang;F. Wang;X.H. Cui;K.M. Chen .Effect of secondary carbides on oxidation wear of the Cr-Mo-V cast steels[J].Materials Letters,2008(2):279-281. |
| [4] | Sawa M;Rigney D A .Sliding behavior of dual-phase steels in vacuum and in air[J].Wear,1987,119(03):369-390. |
| [5] | Yong Wang;Tingquan Lei;Jiajun Liu .Tribo-metallographic behavior of high carbon steels in dry sliding II. microstructure and wear[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,1999(1):12-19. |
| [6] | 冯晓曾;李士玮;武维扬.模具用钢和热处理[M].北京:机械工业出版社,1984 |
| [7] | Sullivan J L;Quinn T F J;Rowson D M .Developments in the oxidational theory of mild wear[J].Tribology International,1980,13(04):153-158. |
| [8] | T. F. J. Quinn .Oxidational wear modelling part III. The effects of speed and elevated temperatures[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,1998(2):262-275. |
| [9] | X. H. Cui;S. Q. Wang;F. Wang;K. M. Chen .Research on oxidation wear mechanism of the cast steels[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2008(3/4):468-476. |
| [10] | S. Q. Wang;M. X. Wei;F. Wang;X. H. Cui;C. Dong .Transition of Mild Wear to Severe Wear in Oxidative Wear of H21 Steel[J].Tribology letters,2008(2):67-72. |
| [11] | S. Q. Wang;M. X. Wei;Y. T. Zhao .Effects of the tribo-oxide and matrix on dry sliding wear characteristics and mechanisms of a cast steel[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2010(5/6):424-434. |
| [12] | M. X. Wei;K. M. Chen;S. Q. Wang;X. H. Cui .Analysis for Wear Behaviors of Oxidative Wear[J].Tribology letters,2011(1):1-7. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%