MAGNESIUM ALLOY SHEET, MAGNESIUM ALLOY PRESSED WORK PRODUCT, AND MANUFACTURING METHOD OF MAGNESIUM ALLOY SHEET
To provide a magnesium alloy sheet excellent in press workability.SOLUTION: A magnesium alloy sheet has a composition comprising a magnesium alloy containing 7 mass% or more and less than 10 mass% of aluminum and 0.01 mass% or more and 0.5 mass% or less of strontium, the balance being magnesium and...
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Zusammenfassung: | To provide a magnesium alloy sheet excellent in press workability.SOLUTION: A magnesium alloy sheet has a composition comprising a magnesium alloy containing 7 mass% or more and less than 10 mass% of aluminum and 0.01 mass% or more and 0.5 mass% or less of strontium, the balance being magnesium and unavoidable impurities, and a texture comprising an oxide of magnesium and an intermetallic compound containing aluminum and strontium, wherein the average number of the magnesium oxides having a maximum diameter of 20 μm or more of the magnesium oxide is less than 5.0 per 1 cm2, and the average number of the intermetallic compounds having an average particle size of 2 μm or more and less than 5 μm is less than 5.0 per 400 μm2, and the average number of the intermetallic compound having an average particle size of 5 μm or more of the intermetallic compound is less than 1.0 per 400 μm2.SELECTED DRAWING: Figure 2
【課題】プレス加工性に優れるマグネシウム合金板を提供する。【解決手段】7質量%以上10質量%未満のアルミニウムと、0.01質量%以上0.5質量%以下のストロンチウムとを含み、残部がマグネシウム及び不可避不純物からなるマグネシウム合金からなる組成と、マグネシウムの酸化物と、アルミニウムとストロンチウムとを含む金属間化合物とを含む組織とを備え、前記マグネシウムの酸化物の最大径が20μm以上の前記マグネシウムの酸化物の平均個数が1cm2あたり5.0個未満であり、前記金属間化合物の平均粒径が2μm以上5μm未満の前記金属間化合物の平均個数が400μm2あたり5.0個未満であり、かつ、前記金属間化合物の平均粒径が5μm以上の前記金属間化合物の平均個数が400μm2あたり1.0個未満である、マグネシウム合金板。【選択図】図2 |
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