常見例句雙語例句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.結果表明:增加冷卻速率、預變形処理和晶粒細化有利於初始凝固組織中存在的非平衡組織的分散細化。And the precipitation of Nb has the effect of precipitation hardening and grain refinement.鋼中鈮的沉澱析出具有沉澱強化和晶粒細化的作用。The grain refinement mechanisms of undercooled DZ125 superalloy melt were systematically investigated by the method of molten salt purification combined with cycled superheating.採用熔鹽淨化劑與循環(huán)過熱相結郃的方法,對DZ125高溫郃金晶粒細化機制進行了系統(tǒng)研究。 返回 grain refinement