查询词典 austenite

The theoretical and testing research results show that inhomogenous microzone of construction ,conce-tration and energy in austenite ,which is in demand for unusual decomposition of undercooling austenite ,can be obtainedby controlling heating or plastic deformation or controlling cooling.

通过理论和试验研究表明，过冷奥氏体异常分解所需要的奥氏体内在结构上、浓度上和能量上的不均匀微区，可以借助于加热过程控制或塑性变形、或冷却过程控制来获得。

It was observed in the Cr-Ni-Mo steels that the intergranular ductile fracture is caused by the reprecipitation of MnS particles in the steel with ordinary S content, and the overheating is also performed by the repreeipitation of AlN or VC particles along the prior austenite grain boundaries in one containing low S. Thus, a proposal seems to be made that the mechanism of overheating of Cr-Ni-Mo steels is related to the solution and reprecipitation of MnS, AlN or VC particles along the prior austenite grain boundaries.

MnS粒子的重新析出使普通硫含量的Cr-Ni-Mo钢发生沿晶延性破断，而AlN或VC粒子在高温奥氏体晶界的重新析出也能使低硫的Cr-Ni-Mo钢过热。

Technology of laser hardening surface of diesel locomotive camshaft using austenite-bainite nodular-iron instead of 20Cr has been systematically elaborated on,which includes a series of measurements such as mechanism of choosing austenite-bainite nodular-iron and it's pretreatment,ascertaining laser technological parameter,spiry laser scanning strip,designing four-motor control devise using microcomputer and so on.

阐述用奥贝球铁代替 2 0Cr制造内燃机车凸轮轴的激光表面强化的工艺过程，其中包括奥贝球铁的选择、激光工艺参数的确定、螺旋激光扫描带、四联动微机控制装置的设计等。研究表明，用奥贝球铁代替 2 0Cr制造凸轮轴，经激光表面强化后，能获得更均匀的硬度分布和更高的硬度值。

It has been proved by X-ray diffraction that the allying can improve austenite stability and increase the actual solid solubility of carbon in austenite.

本文通过X射线衍射证实通过合金化能够使这种材料的奥氏体更加稳定，同时使奥氏体晶格中实际固溶的碳含量增加。

It is found that before the pearlitic and upper-bainitic reactions, a pro-cutectoid orpro-bainitic phase is precipitated along the austenite grain boundaries in the cyanidedsamples; and it is thought that this is likely a nitrogen-bearing phase which provides thephase boundary effect for the nucleation of the reactions and impoverishes the parentaustenite in alloy content, thus accelerating the transformation of austenite.

实验中发现，在珠光体及上贝茵体形成之前，氰化试样中均有一种过剩相沿奥氏体晶粒边界析出。这种先析相可能是一种含氮的化合物，其析出为珠光体及上贝茵体的非自发形核提供了现成的有利界面，并使奥氏体合金化程度降低，因而加速了转变。

A large number of twins was found in bainitic midribs for first time. Twins in midribs as well as retained austenite are deformation twins formed by coordinating uniform shear deformation as bainitic ferrite lath grows, twins in bainitic ferritemainly are those inherited in retained austenite as BF thickens by shear mechanism in broad face.

中脊与残余奥氏体李晶是贝氏体铁素体切变共格长大时协调均匀切变形成的形变孪晶贝氏体铁素体板条内孪晶主要是其横向侧面切变增厚时残余奥氏体的遗传李晶，且孪晶面与界面台阶有对应关系。

A nonmagnetic allotrope of iron that is the basis of austenite; stable between 906 and 1403 degrees centigrade.

无磁性的铁的同素异形体，奥氏体的主要成分，在摄氏度之间保持稳定。

First, the specimens are heated to the temperature of 1150, 1200 and 1250 to determine the grain size of austenite.

首先将试样分别加热到1150℃、1200℃、1250℃的温度下，测定了加热奥氏体晶粒大小。

It is proposed that the microstructure in the austenite is attached importance to the shape memory effect of the alloy.

研究发现，各合金都在特定的温度固溶处理后，呈现最佳的形状记忆效应。

The effect of uneven distribution of strain during compression on dynamic recrystallization and grain size of austenite was analyzed.

分析了热模拟变形过程中的非均匀应变对奥氏体动态再结晶及晶粒尺寸的影响。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。