含 AlN 鋼の溶接性に関する研究(第 1 報) : AIN の挙動ならびに機械的性質におよぼす熱処理条件の影響

概要

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Recently, aluminum nitride bearing steel (AlN bearing steel) is researched as a material which has good mechanical properties, in particular higher ductility at low temperature. In this report, to clarify the weldability of the steel, the behavior of AlN under various conditions of heat treatment and mechanical properties of the steel affected by various thermal cycles are investigated. The results of these investigations are summarized as follows : (1) AlN is almost dissolved into matrix after solution treatment at 1350℃ for 30min. (2) Grain growth of the AlN bearing low carbon steel is not observed up to 1100℃. (3) Transition temperature of AlN bearing low carbon steel is lower than that of aluminum killed low carbon steel. (4) AlN bearing low carbon steel has higher ductility and better impact property than aluminum killed low carbon steel after treatment with various thermal cycles (max. temp. 1150℃). (5) AlN bearing low carbon steel has almost the same mechanical properties as aluminum killed low carbon steel after treatment with various thermal cycles (max. temp. 1350℃).
社団法人溶接学会の論文
1966-10-25