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公开(公告)号：US09738954B2
公开(公告)日：2017-08-22
申请号：US14631107
申请日：2015-02-25
CPC分类号： C22C19/056 , B22D18/06 , F01D5/28
摘要： The present invention relates to a turbine wheel of an automotive turbocharger, including a Ni-based alloy having a composition which contains, in terms of mass %: C: 0.08 to 0.20%; Mn: 0.25% or less; Si: 0.01 to 0.50%; Cr: 12.0 to 14.0%; Mo: 3.80 to 5.20%; Nb+Ta: 1.80 to 2.80%; Ti: 0.50 to 1.00%; Al: 5.50 to 6.50%; B: 0.005 to 0.015%; Zr: 0.05 to 0.15%; and Fe: 0.01 to 2.5%, with the remainder being Ni and unavoidable impurities, in which the turbine wheel includes a wing part and a shaft part, and a size of γ′ phase in each site of from a tip of the wing part to the shaft part is structure-controlled so as to fall within a range of from 0.4 to 0.8 μm.
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2.发明申请公开(公告)号：US20150247221A1
公开(公告)日：2015-09-03
申请号：US14631107
申请日：2015-02-25
CPC分类号： C22C19/056 , B22D18/06 , F01D5/28
摘要： The present invention relates to a turbine wheel of an automotive turbocharger, including a Ni-based alloy having a composition which contains, in terms of mass %: C: 0.08 to 0.20%; Mn: 0.25% or less; Si: 0.01 to 0.50%; Cr: 12.0 to 14.0%; Mo: 3.80 to 5.20%; Nb+Ta: 1.80 to 2.80%; Ti: 0.50 to 1.00%; Al: 5.50 to 6.50%; B: 0.005 to 0.015%; Zr: 0.05 to 0.15%; and Fe: 0.01 to 2.5%, with the remainder being Ni and unavoidable impurities, in which the turbine wheel includes a wing part and a shaft part, and a size of γ′ phase in each site of from a tip of the wing part to the shaft part is structure-controlled so as to fall within a range of from 0.4 to 0.8 μm.
摘要翻译： 本发明涉及一种汽车涡轮增压器的涡轮机叶轮，其包括Ni基合金，其组成按质量％计含有：C：0.08〜0.20％; Mn：0.25％以下; Si：0.01〜0.50％ Cr：12.0〜14.0％ Mo：3.80〜5.20％ Nb + Ta：1.80〜2.80％ Ti：0.50〜1.00％ 铝：5.50〜6.50％ B：0.005〜0.015％ Zr：0.05〜0.15％ Fe：0.01〜2.5％，其余为Ni和不可避免的杂质，其中涡轮机叶轮包括翼部和轴部，以及从翼部的末端到各部位的γ'相的大小 该轴部的结构受控为在0.4〜0.8μm的范围内。
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公开(公告)号：US20150275673A1
公开(公告)日：2015-10-01
申请号：US14665470
申请日：2015-03-23
CPC分类号： F01D5/28 , C22C14/00 , C22F1/183 , F01D5/286 , F05D2220/40 , F05D2230/41 , F05D2300/173 , F05D2300/174
摘要： The present invention relates to a Ti—Al-based heat-resistant member including a Ti—Al-based alloy which includes: 28.0 mass % to 35.0 mass % of Al; 1.0 mass % to 15.0 mass % of at least one selected from the group consisting of Nb, Mo, W and Ta; 0.1 mass % to 5.0 mass % of at least one selected from the group consisting of Cr, Mn and V; and 0.1 mass % to 1.0 mass % of Si, with the balance being Ti and unavoidable impurities, in which a whole or a part of a surface of the Ti—Al-based heat-resistant member includes a hardened layer as a surface layer, the hardened layer having a higher hardness than an inside of the Ti—Al-based heat-resistant member, and the Ti—Al-based heat-resistant member has a hardness ratio (a hardness of the surface layer/a hardness of the inside) of 1.4 to 2.5.
摘要翻译： 本发明涉及一种包含Ti-Al系合金的Ti-Al类耐热构件，其包括：Al：28.0质量％至35.0质量％ 1.0质量％至15.0质量％的选自Nb，Mo，W和Ta中的至少一种; 0.1质量％至5.0质量％的选自Cr，Mn和V中的至少一种; 0.1质量％〜1.0质量％的Si，余量为Ti和不可避免的杂质，其中Ti-Al系耐热构件的表面的全部或一部分包括硬化层作为表面层， 该硬化层的硬度比Ti-Al系耐热构件的内部硬度高，Ti-Al系耐热构件的硬度比（表面层的硬度/内部的硬度 ）为1.4〜2.5。
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公开(公告)号：US09670787B2
公开(公告)日：2017-06-06
申请号：US14665470
申请日：2015-03-23
CPC分类号： F01D5/28 , C22C14/00 , C22F1/183 , F01D5/286 , F05D2220/40 , F05D2230/41 , F05D2300/173 , F05D2300/174
摘要： The present invention relates to a Ti—Al-based heat-resistant member including a Ti—Al-based alloy which includes: 28.0 mass % to 35.0 mass % of Al; 1.0 mass % to 15.0 mass % of at least one selected from the group consisting of Nb, Mo, W and Ta; 0.1 mass % to 5.0 mass % of at least one selected from the group consisting of Cr, Mn and V; and 0.1 mass % to 1.0 mass % of Si, with the balance being Ti and unavoidable impurities, in which a whole or a part of a surface of the Ti—Al-based heat-resistant member includes a hardened layer as a surface layer, the hardened layer having a higher hardness than an inside of the Ti—Al-based heat-resistant member, and the Ti—Al-based heat-resistant member has a hardness ratio (a hardness of the surface layer/a hardness of the inside) of 1.4 to 2.5.
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