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US08479700B2 Iron-chromium alloy with improved compressive yield strength and method of making and use thereof 有权
具有改善的压缩屈服强度的铁铬合金及其制造和使用方法

Iron-chromium alloy with improved compressive yield strength and method of making and use thereof
Abstract:
A chromium-iron alloy comprises in weight %, 1 to 3% C, 1 to 3% Si, up to 3% Ni, 25 to 35% Cr, 1.5 to 3% Mo, up to 2% W, 2.0 to 4.0% Nb, up to 3.0% V, up to 3.0% Ta, up to 1.2% B, up to 1% Mn and 43 to 64% Fe. In a preferred embodiment, the chromium-iron alloy comprises in weight %, 1.5 to 2.3% C, 1.6 to 2.3% Si, 0.2 to 2.2% Ni, 27 to 34% Cr, 1.7 to 2.5% Mo, 0.04 to 2% W, 2.2 to 3.6% Nb, up to 1% V, up to 3.0% Ta, up to 0.7% B, 0.1 to 0.6% Mn and 43 to 64% Fe. The chromium-iron alloy is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines.
Abstract(Chinese):

铬铁合金包括重量％，1％至3％的Si，1％至3％的Si，至多3％的Ni，25％至35％的Cr，1.5％至3％的Mo，至多2％的W，2.0％至4.0％ Nb，高达3.0％V，高达3.0％的Ta，高达1.2％的B，高达1％的Mn和43到64％的Fe。 在一个优选的实施方案中，铬 - 铁合金的重量百分比为重量百分比为1.5-2.3％，Si为1.6-2.3％，Ni为0.2-2.2％，Cr为27-34％，Mo为0.04-2％ ，2.2〜3.6％的Nb，高达1％的V，高达3.0％的Ta，高达0.7％的B，0.1到0.6％的Mn和43到64％的Fe。 铬铁合金可用于柴油或天然气发动机等内燃机的阀座插件。

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