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引言金属和合金的弹性模量是金属和合金中最重要的物理常数之一。根据胡克定律,金属与合金在弹性范围内,胁强(应力)与胁变(应变)成正比,并可以用下面关系式来表示: σ=Eε. (1) 式中σ——胁强;ε——胁变;E——弹性模量。弹性模量是表示材料物理力学的一个最重要特性之一,例如确定合金钢锻件和钢锭容许的加热速度,设计高温下工作仪器及零件,均要求知道材料的弹性模量。同时精确地进行测量高温时金属和合金的弹性模量的变化,可以用来研究金属和合金原子间的作用力关系、相变
Introduction The elastic modulus of metals and alloys is one of the most important physical constants in metals and alloys. According to Hooke’s law, the stress and stress (strain) are proportional to the elastic range of the metal and the alloy, and can be expressed by the following relation: σ = Eε (1) where σ - ; ε - threat; E - elastic modulus. Elastic modulus is one of the most important characteristics of material physics. For example, to determine the allowable heating rate of alloy steel forgings and steel ingots. To design working instruments and components under high temperature requires knowledge of the material’s elastic modulus. At the same time, it can accurately measure the elastic modulus of metals and alloys at high temperature. It can be used to study the force relationship between metal and alloy atoms,