Improving quench hardening of low carbon steel

Authors

T Korad
M Polboon
N Chumchery
J Pearce

Publication Date

2011-07-01

Abstract

The carbon content in steel determines whether it can be directly hardened. If the carbon content is low (less than 0.25wt%) then an alternate means exists to increase the carbon content of the surface. In this study, the mixed quenchant consisting of brine and surfactants known as Superquench was applied in the quench-hardening process on AISI 1015 low carbon steel. The quench results were compared with quenching in heavy brine solution, water and oil which are recognized as the basic quenchants and cannot cause bulk-hardening low-carbon steels. The hardness tests on different points along the radius of cut round bar specimens were performed, and the results exhibited a greater hardness compared to brine quench. The hardness obtained from water quench was below 20 HRC while quenching in heavy brine solution and Superquench gave a hardness of above 40 HRC.

First Page

67

Last Page

74

Recommended Citation

Korad, T; Polboon, M; Chumchery, N; and Pearce, J (2011) "Improving quench hardening of low carbon steel," Journal of Metals, Materials and Minerals: Vol. 21: No. 1, Article 9.
Available at: https://digital.car.chula.ac.th/jmmm/vol21/iss1/9