The surface of nodular cast iron was first coated with tungsten carbide powder, then melted by concentrated solar energy to form an alloyed layer on its surface. By scanning a high energy focal point over the surface, a predominantly alloyed surface was created after rapid solidification. The surface of the alloyed layer was quite flat, with a microstructure of very fine ledeburite. This alloyed layer possessed a very high hardness and high tempering resistance, and had greatly improved wear resistance compared to untreated nodular cast iron. In addition, excellent adhesive wear resistance is displayed by the alloyed material.
Get full access to this article
View all access options for this article.
References
1.
YuZ. K. and ZONGQ. Y.: Acta Energy Solar Sinica, 1981, 1, 109.
2.
YUZ. K., ZONGQ. Y., and TANJ. T.: J. Heat Treat., 1982, 2, 344.
3.
YUZ. K., ZONGQ. Y., and TANZ. T.: J. Heat Treat., 1983, 3, 120.
4.
YUZ. K., ZONGQ. Y., TANZ. T., and z. CHENY.: Proc. 3rd Chinese Conf. on ‘Heat treating’, Xian, 1982, Chinese Mechanical Engineering Society.
5.
CLINEH. E. and ANTHONYT. R.: J. Appl. Phys., 1977, 8, 3895.
6.
MINEMURAT., INOUEA., KOJIMAY., and MASUMOTOT.: Tetsu-to-Hagané (J. Iron Steel Inst. Jpn), 1982, 68, 829.
7.
SARKARA. D.: ‘Wear of metals’, 24; 1977, Oxford, Oxford University Press.
8.
KAWATOM. and OKABAYASHIK.: J. Jpn Inst. Met., 1973, 37, 350.
9.
KAWATOM., SHINTANIS., SONET., and OKABAYASHIK.: J. Jpn Inst. Met., 1973, 37, 1236.
