形变参数对相变过程有着显著的影响，奥氏体化温度决定了奥氏体原始晶粒尺寸同样影响着形变诱导铁素体相变过程。
Deforming parameters can have remarkable effect and the austeniting temperature can determine the original austenite grain size, consequently influence the process of DIFT.
讨论了在相变区的加热速度、奥氏体化温度及保温时间对奥氏体晶粒的影响。
The influence of the rate of heating at phase transformation region, temperature of austenitizing and holding time on the austenite grains are studied.
研究了硼淬透性因子与硼的晶界平衡集聚规律、钢的成分、奥氏体化温度及晶粒尺寸的关系。建立了硼的晶界平衡集聚方程。
The relationship between the boron hardenability factor and the equilibrium segregation of boron to grain boundary, the composition of steel, the austenitizing temperature, grain size was studied.
该方法避免了传统的退火法在晶化温度以上晶粒长大这一缺点，成功制备出晶粒极细小的纳米材料。
The method overcomes the shortcoming of grain growing above the initial crystallization temperature in annealing method, successfully preparing nano-crystalline material of very small grain .
研究了钛含量对中碳硼钢奥氏体晶粒度及晶粒粗化温度的影响。
The Influences of ti content on austenite gain size and grain coarsening temperature in medium-carbon boron steel have been investigated.
在液相线附近，晶粒尺寸随着浇铸温度的降低而逐渐减小并呈球化的趋势。
In the liquidus nearby, the grains size becomes coarse with increasing of casting temperature.
终轧温度的降低可引起奥氏体晶粒的粗化和残余应变的显著提高。
The relatively low finishing temperature can lead to the coarsened grain and high retained strain before transformation.
结果发现，随镍铜量或镍铜比的增加，烧结温度下降，合金的晶粒球化、细化。
The results show that the sintering temperature decreases and the alloy grain is spheroidized and is refined with the increase of Ni and Cu or the ratio of Ni to Cu.
随着加热温度的升高和保温时间的延长，液相增加，晶粒主要通过原子扩散缓慢长大并发生球化。
Grains grow up slowly and are sphericized mainly through elements diffusion with increasing volume fraction of liquid as the increase of the isothermal temperature and holding time.
结果表明：当保温时间相同时，随温度的升高，晶粒尺寸和球化程度均增加；
The results show that, under the same holding time, grain size and spheroidization increases with the increase of isothermal temperature;
结果表明：当保温时间相同时，随温度的升高，晶粒尺寸和球化程度均增加；
The results show that, under the same holding time, grain size and spheroidization increases with the increase of isothermal temperature;
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