AZ91D镁合金的线膨胀系数并非线性变化，在225℃前热挤压AZ91D镁合金型材的线膨胀系数波动幅度最低。

The linear expansion coefficient of AZ91D alloys is non-linear, the fluctuation amplitude of linear expansion coefficient is the minimum before 225℃.

不同的基底合金具有不同的熔点及线膨胀系数。

Different base metal alloy has the different melting point and linear coefficient expansion.

该复合材料的热变形温度有所降低,但线膨胀系数减小.

Thermal deformation temperature and liner expansion coefficient of the composite were decreased.

使用相对比较法对聚氨酯泡沫从液氮温度到室温的平均线膨胀系数进行了测试。

The mean linear thermal expansion coefficient of polyurethane foam was measured from liquid temperature to room temperature by means of relative comparison method in this paper.

详细地探讨了应变片法测量材料线膨胀系数的原理.

The principle of the strain gauge technique for thermal expansion measurement was systematically investigated.

分析了坝体所用混凝土骨料线膨胀系数不同时对坝踵、上游面、坝体中心部位、坝趾、下游面的温度应力的影响情况。

Changes of thermal stress of dam heel, upstream face, dam center, dam toe, downstream face for the difference of linear expansion coefficient aggregate used in the dam.