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1. (WO2018012326) ALUMINUM ALLOY PLASTIC WORKING MATERIAL AND PRODUCTION METHOD THEREFOR

Pub. No.:    WO/2018/012326    International Application No.:    PCT/JP2017/024184
Publication Date: Fri Jan 19 00:59:59 CET 2018 International Filing Date: Sat Jul 01 01:59:59 CEST 2017
IPC: C22C 21/00
C22F 1/04
C22F 1/00
Applicants: NIPPON LIGHT METAL COMPANY, LTD.
日本軽金属株式会社
Inventors: YU Jun
兪 俊
ISHIWATA Yasuo
石渡 保生
SHIMOSAKA Daisuke
下坂 大輔
KONDO Takutoshi
近藤 琢年
TAGUCHI Yoshihiro
田口 喜弘
Title: ALUMINUM ALLOY PLASTIC WORKING MATERIAL AND PRODUCTION METHOD THEREFOR
Abstract:
The present invention provides an aluminum alloy plastic working material which has a low Young's modulus, but has superior proof stress, and a method for efficiently producing the aluminum alloy plastic working material. The aluminum alloy plastic working material according to the present invention contains 5.0-10.0 wt% of Ca, the balance being aluminum and incidental impurities, and has 25% or more by volume of an Al4Ca phase which is a dispersed phase. The Al4Ca phase comprises a tetragonal Al4Ca phase and a monoclinic Al4Ca phase, and the intensity ratio (I1/I2) of the highest diffraction peak (I1) attributed to the tetragonal system to the highest diffraction peak (I2) attributed to the monoclinic system, which are obtained by an X-ray diffraction measurement, is one or less.