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公开(公告)号：US08372220B2
公开(公告)日：2013-02-12
申请号：US12527083
申请日：2008-03-13
申请人： Yoshiya Inagaki , Manabu Nakai , Atsumi Fukuda
发明人： Yoshiya Inagaki , Manabu Nakai , Atsumi Fukuda
摘要： There are provided an aluminum alloy forging having high strength, toughness, and resistance to corrosion in response to the thinning of automotive underbody parts, and a process for production thereof.The aluminum alloy forging includes an aluminum alloy containing predetermined amounts of Mg, Si, Mn, Fe, Zn, Cu, Cr, Zr, and Ti with the balance being composed of Al and inevitable impurities, and having a hydrogen gas concentration of 0.25 ml/100 g of Al. In the aluminum alloy forging mentioned above, the area ratio of Mg2Si having a maximum length of 0.1 μm or above is 0.15% or below, the recrystallization ratio of the aluminum alloy is 20% or below, and a size distribution index value defined by V/r of dispersed particles of the aluminum alloy (V: the area ratio [%] of the dispersed particles, and r: the average radius [nm] of the dispersed particles) is 0.20 or above.
摘要翻译： 本发明提供了一种铝合金锻造及其制造方法，其具有高强度，韧性和耐腐蚀性。 铝合金锻造包括含有预定量的Mg，Si，Mn，Fe，Zn，Cu，Cr，Zr和Ti的铝合金，余量由Al和不可避免的杂质构成，氢气浓度为0.25ml / 100g Al。 在上述铝合金锻造中，最大长度为0.1μm以上的Mg2Si的面积率为0.15％以下，铝合金的再结晶率为20％以下，V值 / V的分散颗粒的分散颗粒（V：分散颗粒的面积比[％]，r：分散颗粒的平均半径[nm]）为0.20以上。
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公开(公告)号：US08152940B2
公开(公告)日：2012-04-10
申请号：US12279189
申请日：2007-03-23
申请人： Manabu Nakai , Yoshiya Inagaki , Atsumi Fukuda
发明人： Manabu Nakai , Yoshiya Inagaki , Atsumi Fukuda
摘要： The present invention provides an aluminum alloy forging material having enhanced strength, toughness, and corrosion resistance, and a method of producing the material. An aluminum alloy forging material 1 produced with specified components under specified conditions has an arm portion 2 including a relatively narrow and thick peripheral rib 3 and a thin and relatively wide central web 4 having a thickness of 10 mm or less and having a substantially H-shaped sectional form. In a width-direction section of a maximum stress producing site of the rib 3a, the density of crystals observed in the structure of a sectional portion 7 where the maximum stress is produced, the spacing of grain boundary precipitates and the size and density of dispersed particles observed in the structure of a sectional portion 8 including a parting line, the recrystallization ratio observed in each of the sectional portions 7 and 8 of the rib, and the recrystallization ratio observed in a sectional portion 9 of the web 4a adjacent to the sectional structure of the rib 3a in the width direction are defined for enhancing the strength, toughness, and corrosion resistance of the aluminum alloy forging material.
摘要翻译： 本发明提供一种具有提高强度，韧性和耐腐蚀性的铝合金锻造材料及其制造方法。 在特定条件下用特定部件制造的铝合金锻造材料1具有臂部分2，该臂部分2包括相对窄且厚的周缘肋3和厚度为10mm或更小的薄而相对宽的中央腹板4， 形截面形式。 在肋3a的最大应力产生部位的宽度方向截面中，在产生最大应力的截面部7的结构中观察到的结晶的密度，晶界析出物的间隔和分散的尺寸和密度 在包括分型线的截面部分8的结构中观察到的颗粒，在肋的每个截面部分7和8中观察到的再结晶比，以及在与断面相邻的纤维网4a的截面部分9中观察到的再结晶比 为了提高铝合金锻造材料的强度，韧性和耐腐蚀性，限定了肋3a在宽度方向上的结构。
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公开(公告)号：US20100089503A1
公开(公告)日：2010-04-15
申请号：US12527083
申请日：2008-03-13
申请人： Yoshiya Inagaki , Manabu Nakai , Atsumi Fukuda
发明人： Yoshiya Inagaki , Manabu Nakai , Atsumi Fukuda
摘要： There are provided an aluminum alloy forging having high strength, toughness, and resistance to corrosion in response to the thinning of automotive underbody parts, and a process for production thereof.The aluminum alloy forging includes an aluminum alloy containing predetermined amounts of Mg, Si, Mn, Fe, Zn, Cu, Cr, Zr, and Ti with the balance being composed of Al and inevitable impurities, and having a hydrogen gas concentration of 0.25 ml/100 g of Al. In the aluminum alloy forging mentioned above, the area ratio of Mg2Si having a maximum length of 0.1 μm or above is 0.15% or below, the recrystallization ratio of the aluminum alloy is 20% or below, and a size distribution index value defined by V/r of dispersed particles of the aluminum alloy (V: the area ratio [%] of the dispersed particles, and r: the average radius [nm] of the dispersed particles) is 0.20 or above.
摘要翻译： 本发明提供了一种铝合金锻造及其制造方法，其具有高强度，韧性和耐腐蚀性。 铝合金锻造包括含有预定量的Mg，Si，Mn，Fe，Zn，Cu，Cr，Zr和Ti的铝合金，余量由Al和不可避免的杂质构成，氢气浓度为0.25ml / 100g Al。 在上述铝合金锻造中，最大长度为0.1μm以上的Mg2Si的面积率为0.15％以下，铝合金的再结晶率为20％以下，V值 / V的分散颗粒的分散颗粒（V：分散颗粒的面积比[％]，r：分散颗粒的平均半径[nm]）为0.20以上。
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公开(公告)号：US20090000705A1
公开(公告)日：2009-01-01
申请号：US12279189
申请日：2007-03-23
申请人： Manabu Nakai , Yoshiya Inagaki , Atsumi Fukuda
发明人： Manabu Nakai , Yoshiya Inagaki , Atsumi Fukuda
摘要： The present invention provides an aluminum alloy forging material having enhanced strength, toughness, and corrosion resistance, and a method of producing the material. An aluminum alloy forging material 1 produced with specified components under specified conditions has an arm portion 2 including a relatively narrow and thick peripheral rib 3 and a thin and relatively wide central web 4 having a thickness of 10 mm or less and having a substantially H-shaped sectional form. In a width-direction section of a maximum stress producing site of the rib 3a, the density of crystals observed in the structure of a sectional portion 7 where the maximum stress is produced, the spacing of grain boundary precipitates and the size and density of dispersed particles observed in the structure of a sectional portion 8 including a parting line, the recrystallization ratio observed in each of the sectional portions 7 and 8 of the rib, and the recrystallization ratio observed in a sectional portion 9 of the web 4a adjacent to the sectional structure of the rib 3a in the width direction are defined for enhancing the strength, toughness, and corrosion resistance of the aluminum alloy forging material.
摘要翻译： 本发明提供一种具有提高强度，韧性和耐腐蚀性的铝合金锻造材料及其制造方法。 在特定条件下用特定部件制造的铝合金锻造材料1具有臂部分2，该臂部分2包括相对窄且厚的周缘肋3和厚度为10mm或更小的薄而相对宽的中央腹板4， 形截面形式。 在肋3a的最大应力产生部位的宽度方向截面中，在产生最大应力的截面部7的结构中观察到的结晶的密度，晶界析出物的间隔和分散的尺寸和密度 在包括分型线的截面部分8的结构中观察到的颗粒，在肋的每个截面部分7和8中观察到的再结晶比，以及在与断面相邻的纤维网4a的截面部分9中观察到的再结晶比 为了提高铝合金锻造材料的强度，韧性和耐腐蚀性，限定了肋3a在宽度方向上的结构。
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