Specimen Geometry Effect on the Mechanical Properties of AISI 1040 Steel

Abstract

The specimen geometry effect on some mechanical properties, such as tensile behaviour and hardness, of borided and unborided AISI 1040 steels was investigated. Boronizing of steels was performed by the powder pack method at 1210 K for 4 h. The specimen geometry and the boride layer thickness and hardness is similar for all tested boronized steels and independent of varying the shape of cross-sections. On the other hand, the ultimate tensile stress and elongation depend on the specimen geometry due to stress concentration at the corners of the specimen.

Comparative Study of Conventional and Microwave-Assisted Boriding of AISI 1040 and AISI 4140 Steels

“…Diffusion kinetics of boron [15][16][17], mechanical [18][19][20], tribological properties [21][22][23] and corrosion resistance [24,25] of borided steels have been investigated in the literature. Uslu et al borided AISI 1040 steel using Ekabor 2 powder at temperatures of 800, 875 and 950 °C for 2, 4, 6 and 8 hours of soaking times.…”