種々の下部組織を持つ工業用純アルミニウム溶接熱影響部の再結晶挙動

概要

論文の詳細を見る
Recrystallization behaviour of commercial pure aluminium may be affected by the morphology of substructures. In this study, commercial pure Al of 10mm thick plate was prepared. That was machined to the plates of various thickness, then these were full annealed at 600℃ for 30min. All plates were made equal to 2mm thick plates by three kind of treatments, these were cold-rolling, cold-rolling and 200℃×30min. annealing (in this report, quasi stabilized treatment=Q. S. T.) and hotrolling. Each treatment induced another type of substructure, i. e. tangled dislocations, statically recovered structure, and dynamically recovered structure. Recrystallization behaviour of these three types of substructure-induced specimens was studied by isothermal heat treatments at various temperatures. And, softened width and recrystallized grain diameter at the electron beam weld heat affected zone of substructure-induced plates were compared. Test plates were 100mm×100mm square plates of 2mm thickness. Obtained results were as follows; (1) Annealing at 200℃ for 30min. after cold-rolling gave smaller recrystallized grain diameter and higher recrystallization temperature than cold-rolled test specimens. (2) The higher the hot-rolling temperature, the higher the recrystallization temperature became, but slight change of recrystallized grain diameter was observed. (3) While hardness of substructure-induced test specimen was below 30,hot-rolled test specimens had higher recrystallization temperature and smaller grain diameter than cold-rolled with or without Q. S. T. specimens. (4) Softened width and grain diameter of electron beam weld heat affected zone of cold-rolled plates were larger than these of cold-rolled with Q. S. T. or hot-rolled plates.
社団法人溶接学会の論文
1980-07-05

種々の下部組織を持つ工業用純アルミニウム溶接熱影響部の再結晶挙動

スポンサーリンク

概要

著者

関連論文

スポンサーリンク