ALUMINUM ALLOY INGOT, AND PRODUCTION METHOD OF ALUMINUM ALLOY MATERIAL

• Main Authors: UDAGAWA SATOSHI, MIYAZAKI SATORU, HATTA HIDECHIKA
• Format: Patent
• Language: English; Japanese
• Published: 15.03.2018
• Subjects: ALLOYS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PROBLEM TO BE SOLVED: To provide an aluminum alloy ingot enabling strength of an aluminum alloy material to be sufficiently increased, and a production method of the aluminum alloy material.SOLUTION: The aluminum ally ingot is constituted of one of an Al-Cu-based aluminum alloy, an Al-Mg-Si-based aluminum alloy and an Al-Zn-Mg-based aluminum and has a maximum equivalent circle diameter of a crystallized product observed in a cross section of less than 4 μm and the number of the crystallized product included per cross section of 1 square millimeter of 100,000 or more.SELECTED DRAWING: None 【課題】アルミニウム合金材の強度を十分に高めることが可能なアルミニウム合金鋳塊、及びアルミニウム合金材の製造方法を提供すること。【解決手段】アルミニウム合金鋳塊は、Ａｌ−Ｃｕ系アルミニウム合金、Ａｌ−Ｍｇ−Ｓｉ系アルミニウム合金、及びＡｌ−Ｚｎ−Ｍｇ系アルミニウム合金のうちのいずれかで構成され、断面において観察される晶出物の最大円相当径が４μｍ未満であり、断面１平方ミリメートル当たりに含まれる晶出物の数が１０万個以上である。【選択図】なし