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公开(公告)号：EP2511392A4
公开(公告)日：2017-08-09
申请号：EP10835944
申请日：2010-12-06
发明人： MIZUNO OSAMU , OKUDA NOBUYUKI , MORI KOJI , YAMAKAWA MASAHIRO , NISHIZAWA MASAYUKI , SUGIHARA TAKAYASU , INOKUCHI KOHJI , KAWABE NOZOMU
CPC分类号： C22C23/02 , B22D11/001 , C22F1/00 , C22F1/06 , C23C22/22
摘要： A magnesium alloy material having excellent impact resistance is provided. The magnesium alloy material is composed of a magnesium alloy that contains more than 7.5% by mass of Al and has a Charpy impact value of 30 J/cm 2 or more. Typically, the magnesium alloy material has an elongation of 10% or more at a tension speed of 10 m/s in a high-speed tensile test. The magnesium alloy is composed of a precipitate, typically made of an intermetallic compound containing at least one of Al and Mg, and contains particles having an average particle size of 0.05 µm or more and 1 µm or less dispersed therein. The total area of the particles accounts for 1 % by area or more and 20% by area or less. The magnesium alloy material containing fine precipitate particles dispersed therein has high impact absorption capacity through dispersion strengthening and has excellent impact resistance.
摘要翻译： 提供具有优异抗冲击性的镁合金材料。 镁合金材料由含有7.5质量％以上的Al且夏比冲击值为30J / cm 2以上的镁合金构成。 通常，在高速拉伸试验中，镁合金材料在10m / s的拉伸速度下具有10％以上的伸长率。 镁合金由析出物构成，该析出物典型地由含有Al和Mg中的至少一种的金属间化合物构成，并且含有分散于其中的平均粒径为0.05μm以上且1μm以下的粒子。 颗粒的总面积占1面积％以上，20面积％以下。 含有分散在其中的微细沉淀颗粒的镁合金材料通过分散强化具有高冲击吸收能力并且具有优异的抗冲击性。
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公开(公告)号：EP2511391A4
公开(公告)日：2017-08-09
申请号：EP10835943
申请日：2010-12-06
发明人： MIZUNO OSAMU , OKUDA NOBUYUKI , MORI KOJI , YAMAKAWA MASAHIRO , NISHIZAWA MASAYUKI , SUGIHARA TAKAYASU
CPC分类号： C22F1/06 , B22D11/001 , C22C23/02 , C23C22/22 , C23C28/021 , C23C28/028 , C23C30/00 , Y10T428/256
摘要： A magnesium alloy structural member having excellent corrosion resistance is provided. The magnesium alloy structural member includes a magnesium alloy substrate that contains more than 7.5% by mass ofAl and an anticorrosive layer formed on a surface of the substrate by chemical conversion treatment. The substrate contains a precipitate, typically, particles dispersed therein. The particles are made of an intermetallic compound containing at least one of Al and Mg and have an average particle size of 0.05 µm or more and 1 µm or less. The total area of the particles accounts for 1% by area or more and 20% by area or less. The anticorrosive layer includes a lower sublayer and a surface sublayer on the substrate in this order. The surface sublayer is denser than the lower sublayer. The substrate of the magnesium alloy structural member has high corrosion resistance because of a high Al content. The magnesium alloy structural member has excellent corrosion resistance because of the dense sublayer on the front side of the anticorrosive layer, which prevents a corrosive liquid from reaching the substrate. The porous lower sublayer can reduce the tendency of the anticorrosive layer to detach from the substrate, for example, upon impact and allows the magnesium alloy structural member to retain high corrosion resistance.
摘要翻译： 提供具有优异耐腐蚀性的镁合金结构部件。 所述镁合金结构部件包括含有超过7.5质量％的Al的镁合金基材和通过化学转化处理形成在所述基材表面上的防腐蚀层。 基材含有沉淀物，典型地，其中分散有颗粒。 粒子由含有Al和Mg中的至少一种的金属间化合物构成，平均粒径为0.05μm以上且1μm以下。 颗粒的总面积占1面积％以上，20面积％以下。 防腐蚀层依次包括在基材上的下部子层和表面子层。 表面子层比下层子层更致密。 由于Al含量高，所以镁合金结构部件的基材具有高耐腐蚀性。 镁合金结构部件由于在防腐蚀层的前侧上具有致密的子层而具有优异的耐腐蚀性，这防止了腐蚀性液体到达基底。 多孔下部子层例如可以降低防腐蚀层从基材上剥离的倾向，例如在冲击时，并允许镁合金结构部件保持高耐腐蚀性。
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公开(公告)号：EP2169089A4
公开(公告)日：2014-10-15
申请号：EP08764063
申请日：2008-06-09
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