| Title |
Effect of Al on Liquid Boronizing (1) |
| Abstract |
The effect of aluminium addition into the molten borax on the boronized depth in a mild steel has been studied quantitatively. Experiments were made with the molten borax, which was previously dehydrated at 450℃ and held at 900℃. The amounts of aluminium added ranged from 0 to 20% for the predetermined holding time. Although the boronized layer was not detected in case of the only borax-molten solution, the boron-penetrated depth was increased as increasing the amounts of aluminium added and the holding time. The micro-hardness of the boronized layer was about 10 times as hard as the mild steel. |