carbon austenite

Continuous Cooling Transformation of Hot-deformed Austenite of High Carbon Non-quenched and Tempered Steel

一种连杆用高碳非调质钢热变形奥氏体的连续冷却转变

Compared with traditional austempered process, this new method would obtain much finer structure with nearly same volume fraction of retained austenite in matrix and carbon content of austenite.

与传统的等温淬火工艺相比，两步法组织得到显著细化，而基体组织中残余奥氏体体积分数及含碳量无明显不同。

When the strain rate is lower, it offers enough time, and forms high concentration gradient of carbon around austenite because of the ferrite precipitation.

在低应变速率下，有足够的时间球化，而且由于铁素体的析出，奥氏体晶界处的碳形成了很高的浓度梯度。

The Study of Heat Treatment for Nodular Iron of Low Carbon Austenite Conditioning and Part Austenite Conditioning

球墨铸铁低碳奥氏体化和部分奥氏体化热处理研究

The inter-phase precipitation of VC can eliminate the enrichment of carbon in austenite, which is the prerequisite for the formation of single phase ferrite.

VC的相间析出消除了碳元素在奥氏体中的富集，因而是获得准单相铁素体组织的重要条件。

When Nb content was 0.014 ( mass,%), finish rolling temperature was 780 ℃ and coiling temperature was 400 ℃, retained austenite fraction, carbon contents of retained austenite, Vickers-hardness and tensile strength have the optimum combination.

铌含量为0.014%、终轧温度为780℃、卷取温度为400℃时，残余奥氏体量、残余奥氏体相中的碳含量与宏观维氏硬度和抗拉强度具有最佳组合。

The experimental results indicate that during 30-120 min, with increasing the isothermal quenching time, the content and carbon content of retained austenite increased to a max value at 60 min, then decreased.

试验结果表明，在30～120min等温淬火时间范围内，随着等温淬火时间的延长，残余奥氏体量及其含碳量逐渐增加，60min时出现峰值，然后逐渐降低；

Castings of different carbon content are poured according to ingredients of different carbon content. Spherical graphite growth parameters can be obtained with the same method. The diffusion coefficient of the carbon element in austenite of ductile cast iron is calculated.

按照不同的碳元素含量配料，浇注出含碳量不同的铸件，利用相同的方法得到球状石墨的生长参数，计算出球墨铸铁中碳元素在奥氏体中的扩散系数。

The cause might be that CFB has a higher temper resistance than M. And carbon enriched retained austenite film in CFB with a good thermal stability might improve the toughness of the steel after tempering at intermediate temperature.

其原因在于中温形成的无碳化物贝氏体具有较高的回火抗力，而无碳化物贝氏体中的热稳定性较高的富碳膜状残余奥氏体使钢呈现较高的韧性。

Estimation of Carbon Activity in Austenite of Fe-Σ M-C Multi-Component Alloy

Fe-∑M-C多元合金奥氏体中碳活度的估算

The increased graphites shorten the diffusion distance of carbon in austenite and the carbon atom transform to the graphite quickly.

石墨数量的增加缩短了碳在奥氏体内的扩散距离，促使碳原子快速转变成石墨，从而加速渗碳体的石墨化过程。

Influence of Ti Content on Austenite Grain Size and Grain Coarsening Temperature in Medium-carbon Boron Steel

钛含量对中碳硼钢奥氏体晶粒度及晶粒粗化温度的影响

C-Me Segregation and Unusual Decomposition in Medium Carbon Alloy Austenite

中碳合金奥氏体内C-Me偏聚与异常分解

The M' temperature falls with the increasing amount of retained austenite and varies with the carbon content of austenite.

M′温度随钢内残余奥氏体量的增加而降低，并随奥氏体内含碳量而改变。

Bainitic ferrites nucleate in carbon-poor austenite.

贝氏体铁素体在贫碳的奥氏体中形核。

The spheroidizing annealing tests were carried out on the 1.6% C forged UHCS ( ultra-high carbon steel) based on DET ( Divorced Eutectoid Transformation) mechanism of the austenite with inhomogeneous carbon concentration. The mechanical properties of the UHCS samples with different microstructures were tested.

根据碳浓度不均匀奥氏体的离异共析转变机制，对1.6%C（质量分数，下同）锻造超高碳钢进行不同工艺的球化处理，并对具有不同球化组织的试样进行性能试验。

The carbon atoms in austenite occupy at octahedral site and will segregate at high temperature quenching.

其残留奥氏体相（RA）中碳原子是处于八面体间隙的位置，并在高温淬火过程中间隙碳原子会发生偏聚。

It is suggested that the bainitic transformation in steel should be the shear process of the transformation dislocation movement controlled by the carbon diffusion in the austenite.

提出钢中贝氏体转变是奥氏体中碳扩散控制相变位错运动的切变过程。

Effect of strength and carbon content of austenite on martensitic and bainitic transformations

奥氏体强化和其中碳含量对马氏体及贝氏体相变的影响

Effects of carbon content in austenite on b_s and m_s

奥氏体内碳含量对B s及M s的影响

When calculating the specific volume of austenite the effect of carbon content in the austenite on lattice parameter was considered.

在计算奥氏体的比容时，考虑了奥氏体中的含碳量对晶格常数的影响；

Electric resistance spot welding for extra low carbon steel and austenite stainless steel

超低碳钢与奥氏体不锈钢的电阻点焊

The volume fraction and carbon content of retained austenite in the austempered high silicon cast steel after various austempering combinations were investigated by XRD method.

采用X射线衍射对高硅铸钢等温淬火热处理后的残余奥氏体量以及残余奥氏体含碳量进行了测定。

Control of this reaction, which arises due to the drastically different carbon solubility of austenite and ferrite, enables a wide range of properties to be achieved through heat treatment.

控制这一由于奥氏体和铁素体的碳溶解性完全不同而产生的反应，使得通过热处理能获得很大范围的特性。

Their metallographic structures were qualitatively and quantitatively analyzed by scanning electron microscope and X-ray diffraction method. And the relationships among heat treatment parameters, content of retained austenite and carbon content of retained austenite were studied.

通过电子扫描电镜及X射线衍射仪对其金相组织进行定性、定量分析，研究热处理参数与残余奥氏体体积含量、奥氏体含碳量的关系。

The existence of the latter further confirms the occurrence of carbon diffusion to enrich austenite during the martensite formation, and twin martensite forms at the parent phase where carbon enrichment is not very high.

后者进一步证明，在低碳马氏体形成时碳的扩散使奥氏体富碳，在有些富碳不太高的母相区域就形成这类组织。