Improvement of press formability on aluminum alloy by controlling the texture with <111>//ND

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18247
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Material processing/Microstructural control engineering
• Research Institution: University of Hyogo
• Principal Investigator: Tsukamoto Masaaki 兵庫県立大学, 工学研究科, 助教 (30725148)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 5083アルミニウム合金 / 集合組織 / 冷間圧延 / せん断応力 / 表面粗さ / 短時間焼鈍

Outline of Final Research Achievements

5083 aluminum alloy was cold-rolled at a reduction rate of 85 % by a dull roll and then annealed for a short time. As the result, the grains with <111>//ND were easily formed. Mulch passes cold-rolling was carried out with raising reduction rate for one pass so that the grains with <111>//ND were increased. However, they existed only on the surface of the specimen. Moreover, they were invaded by recrystallized grains growing from the inside of the specimen and the cold-rolling texture was constructed. Deformation microstructure under the surface of the specimen was similar to the cold-rolling texture. The recrystallized grains having the orientations of the texture were preferentially grown. It was concluded that these prevented the forming the <111>//ND texture.

Free Research Field

材料組織学