合金的基体

Thermal exposured at 175 ℃ for 100 h and 500 h, the yield strength decreases by 5.5% and 14%, and the elongation decreases by 4% and 9.3%, respectively. The fact that S′(Al2CuMg) precipitates get coarsen and the precipitate-free-zones get wider are responsible for the decline of the tensile properties of 2124-T851 aluminum alloy under thermal exposure condition.

于175 ℃热暴露500 h屈服强度和伸长率就分别降低14%和9%；于热暴露条件下，2124-T851合金拉伸性能衰退的主要原因是合金固溶体基体内主要强化相S′(Al2CuMg)相粗化以及晶界无沉淀析出带的宽化。

Thermal exposured at 175℃ for 100 h and 500 h, the yield strength decreases by 5.5% and 14%, and the elongation decreases by 4% and 9.3%, respectively. The fact that S'(AI2CuMg) precipitates get coarsen and the precipitate-free-zones get wider are responsible for the decline of the tensile properties of 2124-T851 aluminum alloy under thermal exposure condition.

于175℃热暴露500h屈服强度和伸长率就分别降低14%和9%；于热暴露条件下，2124-T851合金拉伸性能衰退的主要原因是合金固溶体基体内主要强化相S'(Al2CuMg)相粗化以及晶界无沉淀析出带的宽化。

Both the parent and martensite phases of Cu-based shape memory alloys are metastable phases whose metastability or aging effects are one of the key problems to be solved in applications of the alloys.

铜基形状记忆合金的母相和马氏体均为有序亚稳相，其亚稳性或时效效应是影响合金应用的关键问题之一。

Both the parent and martensite phases of Cu-based shape memory alloys are metastable phases whose metastability or aging effects a...

铜基形状记忆合金的母相和马氏体均为有序亚稳相，其亚稳性或时效效应是影响合金应用的关键问题之一。

By adding minor amount of cheap element Fe into metallic glass based on Zr65Cu17.5Al7.5Ni10 composite, bulk metallic glass in diameter of 3 mm was successfully synthesized by copper mold suction casting method at different voltages.

对以Zr65Cu17.5Al7.5Ni10为基体的非晶合金中添加微量廉价的Fe元素，采用铜模吸铸法在不同电压下制备出直径3 mm大块非晶合金。

When boron content is ＞0.5wt%, the martensite transformation has occurred in partial austenite matrix of the alloy solidification structure.

奥氏体基体成分的经验计算为含B多元合金奥氏体的电子、原子层次的能量计算提供了参考数据。

The results indicate that the welding temperature is the most important factor for diffusion welding of composite. When the welding temperature range is between solidus and liquidus, the peak joint strength can reach 170 MPa.

指出焊接温度是复合材料扩散焊接最重要的工艺参数，焊接温度介于基体合金固相线与液相线之间，接头强度最高值可达到170 MPa；接合界面的氧化膜阻碍基体原子的扩散，是复合材料接头强度下降的原因之一。

The visible spectrum of Mg-based alloy was studied with grating spectroscope and prism spectroscope based on simulated spectrum.

在计算机模拟基础上使用光栅看谱镜和棱镜看谱镜对镁合金基体及成分元素的可见光谱进行了分析，摄制了彩色图谱，研究了镁合金看谱分析方法。

In order to increase the peak depth of nitrogen atoms during the nitrogen plasma ion implantation of Ti-6Al-4V alloy, the rare earth metal yttrium was used to increase the implantation and diffusion depth of nitrogen atoms. In the experiment, the yttrium ions were implanted under the voltage of 20 kV firstly, and then the nitrogen ions were implanted under 30 kV.

为了提高氮离子体浸没离子注入Ti-6Al-4V合金时氮原子的峰值深度，利用钇来增加氮在基体中的注入深度和扩散深度，先用20 kV的电压进行钇离子体浸没离子注入处理，然后用30 kV的电压进行氮离子体浸没离子注入处理。

The results suggest that the electron density of the interface between GP zone and the matrix is coherent under the first order approximation, thus particles of GP zone are prone to growing, while β phase is not coherent, which will restrain recrystalization particles of β phase from growing, however β phase is coherent to enhance resistance to deformation of the alloy under high stress.

结果表明：Al-Mg-Si合金GP区与基体界面电子密度在一级近似下连续，GP区粒子易于长大，而β相不连续，抑制了β相再结晶晶粒的长大，但它在高应力下呈现连续，从而提高合金变形抗力。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了