冷却曲线

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。

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。

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 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。

The dilatometric curves of low-carbon micro-alloyed steel with Mo at different cooling rates were detected on Gleeble-3800 thermo-mechanical simulator.

在Gleeble-3800热模拟试验机上，测定了含Mo 低碳微合金钢在不同冷却速度下连续冷却时的膨胀曲线，利用热膨胀法并结合金相-硬度法，测定了该钢的连续冷却转变曲线；研究了冷却速度对该钢组织及硬度的影响。

By the method of dilatometric change,combining with microscopic test and hardness measurement,different expanding curves of continuous cooling transformation were measured at different cooling rate,and CCT diagram was obtained by using DIL805A thermal expansion fast phase transition instrument.

利用膨胀法，结合金相法和硬度法，在DIL805A热膨胀快速相变仪上测定了该钢在不同冷速下连续冷却时的热膨胀曲线，获得了该钢的连续冷却转变曲线；研究了该钢连续冷却过程中奥氏体转变过程与组织变化。

By dilatometric change referencing microscopic test and hardness measurement, the critical point at Ac1, Ac3 and Ms of 27CrMo27S steel was determined in Gleeble-3800 thermal mechanical simulator, By measuring the different expanding curves of CCT in different cooling rate, CCT diagram was obtained.

利用膨胀法结合金相-硬度法，在Gleeble-3800热模拟机上测定了27CrMo27S钢的临界点Ac1、Ac3以及Ms；测定了该钢在不同冷却速度下连续冷却时的膨胀曲线，获得了连续冷却转变曲线；研究了冷却速度对该钢组织及硬度的影响。

By dilatometric change and microscopic test, the critical point at Ac1、Ar1、Ac3 and Ar3 of ML40Cr steel was detemined in Gleeble-3800 the thermal-mechanical simulator. The continuous cooling transformation diagram of ML40Cr steel was obtained by measuring the expanding curves of different cooling rates. The mechanical property and transformation of austenite were analyzed. The proper range of control cooling rate about ML40Cr cold heading steel was found. All those provide the reference for productive practice to develop cold heading steel.

在Gleeble-380热模拟试验机上采用热膨胀法－金相法测定了ML40Cr钢的临界点Ac1、Ar1、Ac3、Ar3，同时测定了在不同冷却速度下过冷奥氏体连续冷却时的膨胀曲线，获得了该钢的连续冷却转变曲线；研究了ML40Cr连续转变冷却过程中奥氏体转变过程和转变产物的组织和性能，初步确定了ML40Cr盘条的控制冷却范围，为冷镦钢ML40Cr盘条的开发提供了参考依据。

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。