珠光体

After the vanadium content in PD3 steel was more than 0.33%, vanadium carbides would precipitate a lot, and make the lamellar gap sizes of pearlite abnormally coarsen, it was beneficial to toughness of material.

当PD3钢中钒含量增加到0.33%时，碳化钒将大量析出，并使珠光体片间距反常粗化，对韧性不利。

The microstructure changes of pearlitic eutectoid steel induced by cold rolling were investigated by using SEM, TEM and XRD etc.

用SEM、TEM及XRD等方法研究了共析钢中珠光体经40％-90％的冷轧变形后所产生的显徽组织变化。

The new research achievement in recent years was synthesized to expound the new mechanism of eutectoid reaction in steel,to make a new explanation for the mechanism of the interphase precipitation and to renew the concept of pearlite .

本文综合近年来的研究成果，阐述了钢中共析分解的新机制，对于"相间沉淀"机理做了新的解释，重申了珠光体的新概念。

The scientific theory and method are applied to study the pearlitic eutectoid decomposition mechanism in steels and the concept of existence of so-called prevenient phase was negated.

应用系统科学的理论和方法，研究了钢中珠光体共析分解机制，否定了领先相的存在。

Thermal simulation technology was used to research the effect of eutectoid reaction on granular tendency of carbide in GCr15 bearing steel in next process of insulation.

采用热模拟技术研究GCr15轴承钢经不同温度共析转变，得到不同片层间距珠光体组织对接下来的保温过程中碳化物粒状倾向的影响。

Fining pearlite, therefore, is one of the most effective method to further improve the contact fatigue properties of PD3 rail steel.

因此，细化珠光体是进一步提高接触疲劳抗力的有效途径。

In ECAP route C, in order to accommodate the severe shear deformation the deformation form of lamellae cementite in pearlitic steel include periodical bending, periodical shearing and shearing fracture etc .

在C方式ECAP变形中，珠光体钢65Mn中的渗碳体以周期性的弯曲变形，周期性的剪切变形，剪切断裂等形式协调ECAP的强烈塑性变形。

If the deformation of pearlitic cementite is assumed to be purely elastic, the pearlitic colony will become rapidly shaked down plastically.

若假设渗碳体的变形为纯弹性，珠光体团将迅速实现塑性安定。

Ferritic irons have a considerably steeper permeability curve than pearlitic irons .

铁素体铁杆有一个相当陡峭的渗透率曲线比珠光体铁杆。

The chemical composition,microstructure,mechanical properties,production system and economic benefit of as cast ferrite/perlite spheroidal graphite cast iron miner's truck wheel are introduced.

介绍了铸态铁素体－珠光体球墨铸铁矿车轮的化学成分、组织性能、生产工艺及经济效益。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。