レーザ誘起湿式改質における溶液成分がSUS316L鋼の改質層形成に及ぼす影響

抄録

In order to discuss the influence of component of solution on generation of the treated layer by laser-induced wet treatment, the test pieces of SUS316L were soaked in several solutions, which had acidity or alkalinity, were irradiated by laser. The active solution; Al(NO₃)₃ and AlCl₃ solution generated the treated layer of Fe²⁺Al₂O₄. The treated layer generated in Al(NO₃)₃ solution was thinker than that in AlCl₃ solution. On the other hand, the treated layer generated in NaAlO₂ solution, which was alkali, was composed of Fe²⁺Fe₂O₄. This implies that pH of the solution influenced on the generation of the treated layer.