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Analysis of Materials Performance Efficiency

机译：材料性能效率分析

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The Performance Efficiency of a Material (MPE) in a given engineering component is taken as the sum total of the performance indices of the material for various required properties and mandates of design. The performance index for a property is defined as the product of the weight (W) of the property among all the requirements (weight being distributed out of 100 total points among all of the required properties and factors) and satisfaction index (SI), a parameter <1.0 that defines how efficiently the property of the material satisfies the requirement imposed by design. New methods are given in this paper for estimating the weights and SIs of the various required properties and evaluating the MPE for a chosen material in an engineering application. The method is illustrated considering the steel in use in a low-pressure steam turbine rotor and its possible replacement with a lighter-titanium alloy.
机译：给定工程组件中的材料（MPE）的性能效率被视为各种要求的属性和设计要求的材料性能指标的总和。属性的性能指标定义为该属性在所有需求中的权重（W）（权重在所有必需的属性和因素中的100个总分中分配）与满意度指数（SI）的乘积参数<1.0，它定义了材料的性能如何有效地满足设计要求。本文提供了新的方法来估算各种所需特性的重量和SI，并在工程应用中评估所选材料的MPE。说明了该方法，其中考虑了低压蒸汽轮机转子中使用的钢及其可能用轻钛合金替代的钢。

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