合金的

The effects of strain rate and temperature on the tensile yield strength and elongation of titanium aluminides are studied.

摘 要 研究了应变速率和温度对Ti45Al10Nb合金的屈服强度和延伸率的影响。

With the increase of aging temperature, the tensile strength decreases . with the increase of elongation.

随着时效温度的升高，合金的拉伸强度降低，而延伸率则不断增加。

An important parameter for describing the process of surface alloying is the energy barrier of interdiffusion.

由於表面合金的形成只牵涉到最表面一两层的原子，古典方法上应用连续流概念处理扩散现象将不再适用。

We can forecast the segregation of binary alloy by the change of surface energy.

通过表面能的变化可以预测二元合金的表面偏析行为。

With the development of science and technology, applications of Zn-Sn alloys are enlarging.

随着科学技术的不断发展，锌锡合金的应用领域也再扩展。

The effects of erbium additions on the microstructure and mechanical properties have been investigated by means of X-ray diffraction,optical microscope,scanning electron microscope and tensile testing.

采用X射线衍射、金相观察、扫描电镜及拉伸性能测试，研究了Er的添加对合金的显微组织与力学性能影响。

This approach proves to be successful in the containerless processing of water and Pb-Sn eutectic alloy.

该方法在水和 Pb-Sn 共晶合金的声悬浮无容器处理实验中得到成功的证明。

The aging process of isothermal transformation and eutectoid transformation were studied by using DSC and high temperature microscopy.

采用差示扫描量热分析法和高温显微分析法分别研究了ZA27合金的等温时效转变过程和加热过程中的共析转变。

It is found that the amount of proeutectoid ferrite and the carbon content at eutectoid point increase obviously for the alloy under magnetic field heat treatment.

结果表明：不论在何种工艺条件下施加磁场后Fe-0.76%C合金的先共析铁素体析出量均明显增加，而且共析点所对应的碳含量也随之明显增加。

And the relations of hardening exponent and hardening rate with strain were analyzed.

分析了合金的硬化率和硬化指数与应变的关系。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。