查询词典 cooling curve

Based on the non-isothermal transformation theory and non-steady state nucleation theory, a new method for calculating the continuous cooling transformation curve and the critical cooling rate of bulk metallic glass alloys is put forward in this paper.

在非等温转变理论以及非稳态形核理论基础上提出了计算大块非晶合金连续冷却转变曲线和临界冷却速率的新模型，以用于评估合金的非晶形成能力。

27SiMn steel ; continuous cooling transformation curve ; cooling rate ; microstructure ; hardness

27SiMn钢；连续冷却转变曲线；冷却速度；组织；硬度

The continuous cooling transformation curve was constructed chiefly by means of dilatometry,and combined with metallography to exact fix on the phase transition points of different cooling rate.

连续冷却转变曲线的建立主要应用膨胀法，并辅助以金相分析法来精确分析不同工艺条件下的相变点。

It was found that partition of cooling process according to the measured cooling rate curve is not totally corresponding to what were visually observed.

对比发现，按测得的冷却特性曲线的形状划分的冷却阶段，与探棒表面实际发生的冷却情况大不相同。

Combine the cooling characteristic curve of quench media and the dynamics curve of continuum cooling phase change to select the quench media of materials is very useful, and it can obtain best microstructures and controlled crack polarity or distortion.

文章摘要：提出将淬火介质冷却特性曲线与材料的奥氏体连续冷却转变动力学曲线相结合，来选择材料的淬火介质，获得合适的显微组织并控制材料淬火过程中的变形、开裂倾向。

The influence of the strontium content and holding time on the cooling curve of ZL104 aluminum alloy was studied using a self-regulating thermal analysis system.The relationship of modification level and △TEG(the eutectic temperature difference between modified and unmodified alloy) was established.

利用自主开发的铝合金热分析系统，研究了Sr加入量、变质后保温时间对ZL104合金冷却曲线的影响，建立了变质等级与变质前后共晶温度的降低值△TEG之间的对应关系。

Deformation greatly promoted carbonitride isothermal precipitation and made C-curve shift leftwards. The position and shape of C-curve depended on the content of Nb and N to a great extent, C-curve shifted leftwards a little when N content increased and its nose temperature was raised with Nb content increased. 3 when cooling rate increased, start temperature and finish temperature of continuous cooling precipitation decreased, full precipitation became difficult to take place, the volume fraction of carbonitride precipitation decreased, molar fraction of Nb and C dissolved in austenite increased, and the precipitation grain was further refined. Deformation shorten precipitation start time during continuous cooling, raised precipitation start temperature, accelerated precipitation kinetics of carbonitrides.

计算表明：1在Fe—Nb—C系统中，随着温度的降低，析出相的平衡体积分数增加，溶解在奥氏体中的Nb、C的摩尔分数降低，析出相中C和Nb的原子分数的比值v增加；2变形大大促进了碳氮化物的等温析出，使C曲线左移，Nb和N的含量与C曲线的位置和形状有一定的关系，N含量的增加，使C曲线略有左移，而Nb的含量的增加使得C曲线的鼻子区上移；3随着冷却速率的增大，连续冷却析出的开始温度和结束温度均有所降低，并且析出变得越来越不充分，析出相体积分数明显减小，溶解在奥氏体中Nb和C的摩尔分数增大，析出相粒子被明显细化，变形大大缩短了CCP过程碳氮化物析出的开始时间，提高了析出的开始温度，促进了析出动力学。

Hence the following conclusion can be made:①Although an inflection point occrus on the cooling curve, it cannot be regarded as secondary recalescence, but might be called as pseudo-recalescence.

据此认为：①实验中所获得的冷却曲线，尽管再辉阶段出现温度变化拐点，但不能认为是"二次再辉"，姑且称作"伪再辉"。

The shape of the solidification segment of a cooling curve can token the features of the Al-7Si alloy melt by combination addition of boron and strontium.

冷却曲线凝固段的整体形状可以表征亚共晶铝硅合金B、Sr联合处理后的熔体状态。

The results herein given are a preliminary approach in recent researches on the nodularity of pearlitic ductile cast iron and the relationship between the characteristic temperature values on the cooling curve and the nodularity is investigated.

本文介绍了热分析法测试珠光体球墨铸铁球化率的研究成果。指出冷却曲线上温度特征值与球化级别的对应关系。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。