过冷奥氏体

过冷奥氏体的异常分解与碳化物粒化

Unusual Decomposition of Undercooling Austenite and Carbide Granulation

35K钢过冷奥氏体连续冷却转变曲线研究

Continuous cooling transformation of undercooling austenite about 35K

低合金钢过冷奥氏体转变曲线CAD

CAD of transformation curves for supercooled austenite in low alloy steels

Ti的复合添加，提高了过冷奥氏体的稳定性，使相变温度降低，有利于得到细小的组织。

The stability of austenite is enhanced by the co-addition of V and Ti , which decreases transformation temperature and results the refinement of microstructure .

稀土轨钢过冷奥氏体转变机理及CCT曲线的预测方法

Supercooled Austenite Transformation Mechanism of Rare Earth Microalloy Rail Steel and Method of Predicting CCT Diagram

计算机绘制钢的过冷奥氏体等温转变（TTT）曲线

Drawing of Time Temperature Transformation ( TTT ) of Steel 's Metastable Austenite by Computer

测定了控制冷却SiMn贝氏体/马氏体耐磨铸钢的过冷奥氏体等温转变曲线，并以此为依据，对这种钢的等温淬火工艺及性能进行了研究。

By determining the T T T curve and studying the isothermal quenching process of the controlled cooling Si Mn bainite martensite wear resisting cast steel , we have get some useful conclusions .

从价电子结构导致的短程偏聚讨论了过冷奥氏体等温转变时Cr、Si对C-曲线的影响。

According to the short range segregation due to the valence electron structure , the effect on the C-curVe by elements Cr 、 Si during isothermal transformation of the over cooling austenite is discussed .

通过对一种商业用管线钢连续冷却相变曲线（CCT）的测定，研究了过冷奥氏体的相变规律。

The phase transformation of super cooled austenite was investigated for a commercial pipeline steel by measuring the continuous cooling transformation diagram ( CCT ) .

采用Gleeble-1500D型热模拟机测定了不同含铌量低碳微合金钢在不同冷却速度下，过冷奥氏体连续冷却相变点，分析观察了显微组织，测定了其显微硬度。

The phase transformation temperature was determined by Gleeble-1500 thermo-mechanical simulator with different Nb content for the low carbon and low alloy steel .

结果表明，采用高温奥氏体的形变再结晶及过冷奥氏体的形变强化相变，可以使Q235低碳钢的铁素体晶粒细化至4-5μm，材料的屈服强度达到400MPa级，延伸率达到40%。

The results indicated that fine ferrite grains of 4-5 μ m can be achieved by deformation enhanced phase transformation of undercooled austenite in combination with austenitic re-crystallization . The yield strength exceeded 400 MPa and the plastic elongation was over 40 % .

试样加热至1150℃1min奥氏体化后以20℃/s冷却至700℃，压缩变形60%，在变形作用下，钢中部分过冷奥氏体转变成细片层珠光体。

And as sample heated to 1150 ℃ for 1 min for austenization than cooled with 20 ℃ / s to 700 ℃ and reduced by 60 % , the partial overcooling austenite in steel transformed to fine lamellar pearlite under effect of deformation .

钢的过冷奥氏体连续转变曲线的解析化

Formulation of Continuous Cooling Transformation Curves for Steel Over cooling Austenite

形变对低碳钢过冷奥氏体相变温度的影响

Effect of deformation on undercooled austenite transformation temperature in low carbon steels

过冷奥氏体扩散相变温度的测定

Determining diffusive phase transformation temperature for undercooling austenite

过冷奥氏体等温转变曲线的矢量化处理

Vectorization Treatment Method for TTT Curve

两相区加热对45钢的过冷奥氏体转变及淬透性的影响

The Effect of Intercritical Heating on the Transformation of the Undercooled Austenite and the Hardenability of 45 Steel

同一冷却速度下，3种不同的变形工艺获得过冷奥氏体发生贝氏体转变的开始温度不同。

At the same cooling rate , the bainite transformation temperature of deformed specimens with the three schedules is different .

煤机链条钢过冷奥氏体等温转变曲线及回火工艺研究

The Study on the Overcooling Austenite Isothermal Transformation Diagram and Tempering Technology of Circular Chain Steel in Coal Mine Machine

典型冷作模具钢经强韧化奥氏体化后的过冷奥氏体中温转变研究

An Investigation on Middle Temperature Transformation of Super Cooled Austenite after Austenitizing for High Strength and Toughness of Typical Cold Die Steels

结果表明：稀土使钢的过冷奥氏体转变曲线右移，在同样冷却速度下，加稀土钢的硬度增加。

The result shows that the RE make CCT curve move towards right and hardness of steel increases at same rate of cooling .

低碳硼钢过冷奥氏体分解早期α形核位置饱和现象

Preferential site saturation for nucleation and growth of α - phase at early stage of austenite decomposition in low carbon steel bearing boron

过冷奥氏体高速冷却，几乎全部形成脆硬的马氏体薄层，造成踏面剥离。

The supercooled austenite transforms into friable martensite layer during the following rapid cooling process , leading to cracking and spalling at wheel tread .

通过Gleeble2000和1500热模拟试验机，研究了0·75C共析钢珠光体和过冷奥氏体在压缩变形过程中的组织演变。

The structure evolution of pearlite and overcooling austenite of 0.75C eutectoid carbon steel during compression has been studied by Gleeble 2000 and 1500 thermal simulation machines .

用拟和法及三次样条函数描述了钢的过冷奥氏体冷却转变曲线，在微机上建立了曲线数据库，为后续工作做了充分的准备工作。

The transformation diagrams of super-cooled austenite are described by polynomial-like function and cubic spline function . The database of diagrams is set up on computer , which provides abundant preparations for the following work .

形变改变了过冷奥氏体的转变方式，有利于渗碳体的球化，故有可能实现中碳冷镦钢的在线软化。

In a word , the possibility of the on-lining soften of the 35K steel could achieve because deformation change the transformation model of austenite which can fast the spheroidization of cementite on the process of controlled cooling .

工艺参数对过共析钢过冷奥氏体动态转变的影响

Effect of processing parameters on dynamic transformation of undercooled austenite of hypereutectoid steel