petch

Using these results , the Hall & Petch relation of brittle stress can be obtained .

根据这些结果即可得到脆断应力的Hall&Petch关系。

Hall - Petch Relationship in Alloys with Spinodal Decomposition Strengthening

具有失稳分解强化的Hall-Petch关系

The Application of Gibberella zeae ( Schw . ) Petch Crude Toxin to Determine the Resistance of the Wheat Varieties

应用赤霉菌粗毒素测定小麦品种的抗赤霉病性

Studies on a high n ~ 6 - ( 2-hydroxyethyl ) adenosine yielding strain of Cordyceps pruinosa Petch induced by UV irradiation of protoplast

粉被虫草N~6-（2-羟乙基）腺苷高产菌株的原生质体诱变育种

On tht Mathematical Model of Two-Orders for Gibberella zeae ( Schw . ) Petch Forecasting and its Application

一个预测小麦赤霉病的二阶数学模型及其使用

The rigidity of the PZT films displays the inverse Hall – Petch relation , that is to say , the rigidity increases with the increase of the crystal size .

PZT薄膜的硬度呈现出逆Hall-Petch关系，即硬度随晶粒的增大而增大。

Three basic communities resistant to scab ( Gibberella Zeae ( schw ) Petch ) were separately established with eight varieties ( Lines ) in recurrent selection program .

本研究采用8个品种（系），分别组建3个抗赤霉病轮回选择基础群体，制定了实施轮回选择方案和选择技术。

Consequently , according to hall - petch formula , the properties of the alloys are improved so that the application range of the alloys will be extended and can be used as a substituent of brass , bronze and leaded babbitts in some cases .

在锌铝合金中加入适量稀土可以明显细化晶粒，根据hall-petch关系式，合金性能也将得到提高，从而扩大合金的应用范围，成为黄铜、锡青铜、铝青铜和铅基巴氏合金的良好替代材料。