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- Keywords Low alloy steel;CCT curve;Quench cooling rate;Microstructure;Mechanical property; 低合金铸钢;连续冷却曲线;淬火冷却速度;显微组织;力学性能;
- Quench cooling rate 淬火冷却速度
- The retrogradation was increased by a slower cooling rate. 慢速降温冷却也有利于增大回生程度。
- From vapor blanked stage to the nucleate boiling stage, there exists repeated moisture, which influences the conformity of the quench cooling process and quench hardness. 提出由蒸汽膜阶段向膜沸腾阶段转变的过程中，存在重湿润过程，重湿润过程影响淬火冷却的均匀性和淬火硬度的均匀性。
- At a slow cooling rate, the size of spherulite becomes larger and more regular. 并且在慢速冷却条件下，球粒尺寸明显增大，球体更加规则。
- The formability would be influenced with the reduction of the cooling rate. 但随着冷却速度下降，易产生流淌，影响成形性。
- However,at the relatively faster cooling rate,when the tempering tempe... 快速冷却条件下,回火温度升高,强韧性下降。
- Effects of cooling rate on eutectic microstructure of Zn-(0.24Ni) alloy for hot dip galvanization were investigated. 研究了冷却速度对用于热浸镀Zn的Zn0.;24Ni合金共晶组织的影响。
- It is found that the cooling rate has great effect on oxide precipitation and growth. 计算结果表明，冷却速率对凝固过程中氧化钛的析出和长大有重要影响：冷却速率越小，氧化钛长得越大。
- The more the increasing of cooling rate or pre-deformation, the more the secondary dendrite arms are easy to coarsen. 冷却速率越大或预变形处理以后的试样在熔化过程中更容易发生二次枝晶臂之间的合并。
- precision quench cooling technique 精细淬火冷却技术
- The higher the cooling rate, the lager the corresponding thermal expansion changes. 降温速率越大,其相应的热膨胀系数也越大;
- The more the increase of cooling rate or pre-deformation, the more the secondary dendrite arms are easy to coarsen. 冷却速率越大或预变形处理以后的试样在熔化过程中更容易发生二次枝晶臂之间的合并。
- The influence of cooling rate on the room temperature resistivity of PTCR ceramics was studied emphatically. 着重研究降温速率对PTCR室温电阻率的影响。
- Computer simulation showed that the cooling rate of castings can be reduced by such method. 计算机模拟表明,这种工艺方法还可以降低铸件冷却速度。
- The precipitation amount of Nb(CN) particle increases firstly and then decreases at different cooling rate. 在不同冷却条件下,碳氮化铌的析出量随反应时间呈先增加后减少的趋势;
- The metallographic cooling rate was measured for the Deng Ujimqin mesosiderite using And profile ac concentration vs. 采用剖面中间浓度与镍纹石带宽度关系测定了东乌珠穆沁中铁陨石的金相冷却速率，其冷却速率介于0。
- As a result,the compressed air supply is saved greatly,its jet speed of airflow increased and the cooling rate raised. 既大大地节约供气量,又增加气流射速,提高冷却速率。
- As a result, It is found that the cooling rate has great effect on the Nb(CN) nucleation and growth. 计算结果表明:冷却速率对碳氮化铌的析出及长大有重要影响。
- In the course of formation of the labrador megacryst lapilli, the temperature and the cooling rate are the major factors controling their crystallization and growth. 托勒巴契克火山拉长石巨晶火山砾形成过程中,温度和冷却速率乃是控制其结晶生长的主导因素。
