grain refinement

基本解释

The results show that, increasing cooling rate, pre-deformation and grain refinement are useful for spreading of the non-equilibrium microstructure around the primary grains.
结果表明：增加冷却速率、预变形处理和晶粒细化有利于初始凝固组织中存在的非平衡组织的分散细化。
And the precipitation of Nb has the effect of precipitation hardening and grain refinement.
钢中铌的沉淀析出具有沉淀强化和晶粒细化的作用。
The grain refinement mechanisms of undercooled DZ125 superalloy melt were systematically investigated by the method of molten salt purification combined with cycled superheating.
采用熔盐净化剂与循环过热相结合的方法，对DZ125高温合金晶粒细化机制进行了系统研究。

晶粒细化
Effects of strontium addition on grain refinement of AM60B alloy are investigated.
研究了Sr对AM60B合金晶粒细化的影响。
细化晶粒
It was also found out that proper Re element addition could increase the toughness of the weld metal and improve its microstructure by grain refinement.
适量的稀土元素可改善焊缝金属组织的形态、细化晶粒、提高韧性。
机械工程
晶粒细化