ALUMINUM ALLOY FORGED ARTICLE

To provide an aluminum alloy forged article having better mechanical characteristics than a conventional aluminum alloy forged article.SOLUTION: An aluminum alloy forged article according to the present invention is composed of an aluminum alloy comprising 0.2-0.5 mass% Cu, 0.6-1.2 mass% Mg, 0.4-1.2...

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Bibliographische Detailangaben
Hauptverfasser:	TOMITA YUTO, ARAYAMA TAKUYA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	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
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Beschreibung
Zusammenfassung:	To provide an aluminum alloy forged article having better mechanical characteristics than a conventional aluminum alloy forged article.SOLUTION: An aluminum alloy forged article according to the present invention is composed of an aluminum alloy comprising 0.2-0.5 mass% Cu, 0.6-1.2 mass% Mg, 0.4-1.25 mass% Si, 0.4-0.6 mass% Mn, 0.15-0.70 mass% Fe, 0.09-0.25 mass% Cr, 0.012-0.035 mass% Ti, with the balance consisting of Al and inevitable impurities, and contains a precipitate of a C phase and a precipitate of a β'' phase in precipitates composed of intermetallic compounds observed when an Al base phase is observed on incidence by a transmission electron microscope.SELECTED DRAWING: Figure 5 【課題】従来より優れた機械的特性を有するアルミニウム合金鍛造品を提供することである。【解決手段】本発明に係るアルミニウム合金鍛造品は、Ｃｕ：０．２質量％～０．５質量％、Ｍｇ：０．６質量％～１．２質量％、Ｓｉ：０．４質量％～１．２５質量％、Ｍｎ：０．４質量％～０．６質量％以下、Ｆｅ：０．１５質量％～０．７０質量％、Ｃｒ：０．０９質量％～０．２５質量％以下、Ｔｉ：０．０１２質量％～０．０３５質量％、残部がＡｌ及び不可避不純物からなるアルミニウム合金から構成されるアルミニウム合金鍛造品であって、透過型電子顕微鏡によってＡｌ母相に対して＜１００＞入射で観察した際に観察される金属間化合物からなる析出物の中に、Ｃ相の析出物及びβ''相の析出物が含まれている。【選択図】図５