The refined microstructure is insensitive to cooling rate, being independent of casting thickness.
这种合金的细小显微组织对冷却速度不敏感，不因铸件壁厚不同而变化。
The cast iron modified by re offers refined microstructure in which the carbides become blocky or granular, thus increasing the mechanical properties.
经稀土变质处理的铸铁组织细化，其碳化物呈团块状或颗粒状，从而提高了力学性能。
The experimental results show that super-refined microstructure is formed in the remelting layer. The bending strength and wear resistance are enhanced evidently.
结果表明，激光熔凝处理后获得超细化的枝品组织，其抗弯强度和耐磨性显著提高。
Due to very high cooling rate, the nugget structure rapidly nucleates and grows. The refined microstructure of the nugget with rapidly solidified characteristic is formed.
极大的冷却速率使得接头组织瞬间形核并快速生长，形成组织细小致密具有快速凝固特征的焊接接头。
The results reveal that the microstructure of the AZ91 alloy is effectively refined after hot-extrusion.
研究了挤压比对热挤压AZ91镁合金显微组织和拉伸性能的影响。
The solidification microstructure of some alloys can be remarkably refined under the applied strong pulsed magnetic field. This is a new arisen technology with wide prospect.
在强脉冲磁场作用下，合金凝固组织可以得到显著细化，这是一种新出现的前景十分广阔的新工艺。
For the difference of ship steel low temperature impact value, the effects of chemical composition, inclusion and microstructure of the refined and unrefined steel are analyzed.
针对精炼与非精炼船钢低温冲击值的差异，分析了两种钢的化学成分、夹杂物和显微组织等对冲击值的影响。
The results show that mechanical properties of the pipe were improved greatly by new technique, and grain size refined, microstructure improved, residual stress and energy consumption reduced.
结果表明，新工艺可明显提高产品的力学性能、细化晶粒、改善组织、减小应力，并降低了能耗。
Compared with the as-cast alloy, microstructure of the sub-rapid solidification alloy was apparently refined.
与铸态合金相比，亚快速凝固合金组织明显细化。
The si phase in microstructure of the alloy can be spheroidized and refined with extending isothermal time and increasing isothermal temperature in the condition of a given cooling rate.
在一定的冷却速率下，适当延长等温处理时间、提高等温处理温度有利于硅相的圆整化、细化。
Twin-twin self-intersection and dislocation slipping were coordinated, the refined twins and cystiform microstructure were formed.
孪晶自身相互交割和位错的滑移相互协调，形成了细小的孪晶和胞状组织；
The mechanism that the solidification microstructure can be refined by pulse current treatment is primary pulse current induced nucleation.
脉冲电流对金属凝固组织的作用机理主要是脉冲电流诱发形核机制。
The mechanism that the solidification microstructure can be refined by pulse current treatment is primary pulse current induced nucleation.
脉冲电流对金属凝固组织的作用机理主要是脉冲电流诱发形核机制。
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