precipitation hardening

The effect of high-temperature pre-precipitation on the microstructure, age hardening and stress corrosion cracking of7A52 alloy has been investigated.

研究了高温预析出对7A52合金组织、时效硬化和应力腐蚀断裂的影响。

On the metallurgical problems of some precipitation hardening stainless steels

某些沉淀硬化不锈钢的金属学问题

The results show that trace Cr can enhance Cu Zn alloy hardness and recrystallized temperature in the way of precipitation hardening. Rapid heat rolling and quenching can hold the effects of working hardening, and thermomechanical treatment can develop structure hardening as well.

结果表明：微量Cr能提高Cu Zn合金硬度和再结晶温度，Cr对合金性能的影响是通过沉淀强化来实现的，快速热轧淬火具有保留加工强化的效果，形变热处理还产生了组织强化。

In the paper, there were given results of fatigue strength tests carried out on nitrided 45 carbon steel ( C-0.45%; Mn-0.65%) after precipitation hardening.

本文给出了渗氮后的45钢（C0.45%；Mn0.65%）经沉淀硬化处理后的疲劳强度试验结果。

Application Of high-strength precipitation-hardening stainless steel in aircraft

高强度沉淀硬化不锈钢在飞上应用