Electron Beam Surface Treatment. Part I: Surface Hardening of AISI D3 Tool Steel

The effects of electron beam surface hardening treatment on the microstructure and hardness of AISI D3 tool steel have been investigated in this paper. The results showed that the microstructure of the hardened layer consisted of martensite, a dispersion

An elastoplastic constitutive relation of whisker-reinforced composite for meso damage: Part I - formulation

An elastoplastic constitutive relation is developed for meso damage of whisker-reinforced composites. A model is constructed that includes orientation distribution of whiskers and slip systems as well as interface and crystal sliding. Evolution of damage will be addressed. Given in Part I is the formulation while examples will be illustrated in Part II.

坡面流及土壤侵蚀动力学（I）--坡面流

坡面流是坡面土壤侵蚀的根本动力，是研究土壤侵蚀动力学过程的基础。简要介绍了坡面流的基本特征和水力学特性，综述了坡面入渗产流过程、坡面流阻力，以及坡面流运动的数学描述和预报模型等方面的研究进展。指出复杂坡面条件下的坡面流运动，以及从小尺度过渡到大尺度将是今后坡面流研究的重要发展方向。

玻璃纤维增强复合材料的I型层间断裂韧性

介绍了玻璃纤维增强复合材料Ⅰ型层间断裂韧性“Ｒｏｕｎｄ Ｒｏｂｉｎ Ｔｅｓｔ”的结果。随着偶联剂浓度的改变，Ｉ型裂纹的扩展方式从稳态向非稳态转变。这类断裂韧性强烈地依赖界面性能。

Studies on the phase diagram of the surfactant/1-pentanol water ternary system I: The isotropic phases

The phase diagram of the dodecyl dimethyl ammonium hydroxyl propyl sulfonate(DDAHPS)/1-pentanol(C5H11OH)/water ternary system has been established. It contains two isotropic monophase regions (L-1 and L-2) and a liquid crystalline region (L.C.). The isotropic phase regions have been investigated by means of Raman spectroscopy and conductivity.