Effect of Argon Ion Bombardment on Diffusion Bonding of SUS304L Stainless Steel and Pure Iron.

Abstract

The surfaces of SUS304L stainless steel and pure iron specimens prepared by a lapping method were treated with argon ion bombardment, and then diffusion bonding was carried out. The effect of argon ion bombardment treatment on the properties of diffusion bonding joint was investigated by the tensile tests of joints and microstructure analyses of the fractured surfaces. The results showed that the argon ion bombardment treatment before bonding was effective to clean the bonding surface and reduce the inclusions at the bonded interface, so that the tensile strength of the bonded joints was improved and bonding temperature was lowered. The joint properties of pure iron were more excellent than those of SUS304L stainless steel. The amount of the inclusions at the joints with argon ion bombardment treatment depended on affinity of oxygen to metal.KEY WORDS: argon ion bombardment; diffusion bonding; SUS304L stainless steel; pure iron; microstructure; inclusion; oxide film.

Effect of Argon Ion Bombardment on Diffusion Bonded Joint of Various Metals

“…For SUS304L, Fe, and Cu specimens, the improvement of the tensile strength of the bonded joints and lower of bonding temperature by argon ion bombardment were also achieved. The details have been described in other paper [12,13]. These results indicate that argon ion bombardment treatment has an effect to improve tensile strength of the bonded joints.…”

Effect of isothermal quenching methods on impact toughness and wear resistance in high boron steel

“…Boron concentration in ordinary cast steel is very low, usually not more than 0.005 % [7][8][9][10], because excess boron will form brittle boride [11]. However, the hardness and thermal stability of boride are higher than carbide.…”