本文讨论了稀土元素在铁和钢中的合金化作用。
Alloying functions of rare earth metals (REM) in iron and steels are discussed.
概述了一些常见元素在铝锂合金中的微合金化作用及机理。
This paper summarizes the microalloying mechanism and effects of some elements in Al-Li alloys.
研究结果表明：1. P - RE复合变质对过共晶铝硅合金的初晶硅和共晶硅都具有良好的变质和细化作用。
The result indicated that: 1. P-RE combination modification can modify both the eutectic Si and primary Si of the hypereutectic Al-Si alloy at the same time.
硅酸钠能使软木粉粘结在模具表面，而且还有助于软木粉耐受熔融铅合金的碳化作用。
The sodium silicate makes the cork stick to the mold surface and also helps to withstand the charring action of the molten lead alloy .
硅酸钠能使软木粉粘结在模具表面，而且还有助于软木粉耐受熔融铅合金的碳化作用。
The sodium silicate makes the cork stick to the mold surface and also helps to withstand the charring action of the molten lead alloy.
稀土在金属与合金的高温氧化与硫化作用中具有明显的抗蚀特性。
It is obvious that rare earths can suppress the oxidation and sulfuration of metals and alloys at high temperatures.
镍基过渡合金既起到弥散强化作用，又能提高其韧性，减少裂纹产生。
The Ni-based transition alloy had a function of dispersion strengthening, and ahvanced the toughness, reduced the trend of cracking.
二氢杨梅素抗氧化活性优异，其作用机制是通过螯合金属离子，从而消除其对自由基氧化的催化作用。
Dihydromyricetin has excellent antioxidant activity. Its antioxidant activity embodies by chelating metal ion and clear the catalysis to free radical oxidation.
目的研究钛合金义齿打磨粉尘致鼠肺纤维化作用。
Objective To study the effects of Titanic alloy denture milling dust on lung fibrosis in rats.
相和Z相的共同强化作用使a 5合金具有更高的强度。
Due to the combined strengthening effect of 8phases and Z phases, the A5 alloy had the higher strength.
这两种相都能阻碍位错运动，对合金起到很好的强化作用。
All of the two phases can impede dislocation movement, also play a very important role for strengthening the alloys.
碳在合金的晶界富集，并有一定的强化作用。
The strengthening effect of carbon enriched at the grain boundaries on the alloy can be fo...
研究结果表明，电脉冲处理对铝硅合金凝固组织中的共晶硅起到很好的细化和粒化作用，达到了类似化学变质的效果；
The results of the experiment show that the eutectic silicon become small and granular by electric pulse discharging, which like the effects treated with chemical modification .
研究结果表明：超声波在熔体中产生空化作用，对7055铝合金熔体作超声处理能细化晶粒，提高强度，并能大幅度提高其塑性。
The results show that casting after ultrasonic treatment can obtain finer grain with homogeneous microstructure and higher strength meanwhile acquire strongly improved plasticity of the alloy.
研究结果表明：超声波在熔体中产生空化作用，对7055铝合金熔体作超声处理能细化晶粒，提高强度，并能大幅度提高其塑性。
The results show that casting after ultrasonic treatment can obtain finer grain with homogeneous microstructure and higher strength meanwhile acquire strongly improved plasticity of the alloy.
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