pearlite

In use of spheroidizing agency treatment, some spheroidal graphites and carbide on the matrix of lamellar or sorbitic pearlite can be achieved in as-cast state.

其基本特点是通过对钢水的球化处理使材料在铸态下得到一定量的球状石墨和碳化物，基体组织为片状珠光体或索氏体。

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In range of 860-950 ℃ normalizing, ideal spheroidal pearlite can be achieved after normalizing.

锻造、正火后，基体组织为粒状珠光体。在860～950℃之间正火，可以得到理想的粒状珠光体组织。

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The results show that the microstructures are related to the attenuation coefficients. Among pearlite plus ferrite, quenched martensite, and tempered martensite, α of pearlite plus ferrite is the biggest, α of tempered martensite is the smallest.

实验结果表明，对于珠光体+铁素体、淬火马氏体及回火马氏体3种组织，珠光体+铁素体的超声波衰减系数最大，回火马氏体的最小；

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It has been found that applied stress has significant influence on pearlite transformation.

发现外加应力对珠光体转变有显著影响.

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The result showed that the Rockwell hardness of the high pearlite-containing nodular iron camshaft increased with increasing of its nodularity and pearlite content.

结果表明，高珠光体含量球铁凸轮轴的洛氏硬度随着球化率和珠光体含量的升高而增加。

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Heat treatment: Through annealing, spheroidal pearlite can be achieved, and toughness rises, and on the other hand strength decreases.

热处理：通过退火，基体组织为粒状珠光体，强度、硬度下降，韧性大幅度上升；

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Results showed that warm deformation of pearlite will accelerate greatly the spheroidizing process.

结果表明：珠光体温变形显著加快了碳化物球化过程。

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Development of expanded pearlite color glass compound facing material

膨胀珍珠岩&玻璃彩色复合饰面板的研制

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During the study, spheroidal pearlite of spheroidal-graphit cast steel has been achieved after hot-forging or normalizing first.

另外本文在研究过程中，发现在锻造和正火条件下得到了粒状珠光体，这在球墨铸钢领域里是未见报道的。

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Discussion about the use of cement pearlite in the thermal insulating layer of the roof

对屋面保温层采用水泥膨胀珍珠岩材料的探讨

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Unlike that of tempered martensite structure, there is little effect of oxygen content on the fatigue properties of ferrite-pearlite steel.

与调质回火马氏体组织不同，氧含量对铁素体-珠光体组织的疲劳性能没有明显的影响。

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At last, the density of dislocation of the material increases greatly after hot forging, then segregation of carbon occurs, which also result in non-uniformly austenite and then spheroidal pearlite.

热加工时，位错密度大大增加，使碳出现偏聚，增加了奥氏体不均匀的程度，促进粒状珠光体的形成。

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Its microstructure is fine pearlite and carbides.

金相组织是细珠光体和碳化物.

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By means of appropriate spheroidizing treatment on the liquid of steel, casting structure direct acquire certain quantitative spheroidal graphite 、 carbide and pearlite, reduces the content of harmful impurity effectively.

通过对钢液进行适当的球化处理，铸态组织直接获得一定数量的球状石墨、碳化物和珠光体，并有效地降低有害杂质的含量。

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Spherular Pearlite Detection Based on Deformable Template Matching

基于可变模板匹配的球化珠光体检测

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Effect of polymer powder on property of fresh expanded pearlite thermal insulating mortar

聚合物干粉对新拌膨胀珍珠岩保温砂浆性能的影响

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Holding in the lower pearlite range accelerates subsequent transformation to bainite.

下珠光体区停留促进贝茵体的形核过程.

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Studies on carbides granulation in austenite ( forged or reheated) of 45 steel through the technology of controlling cooling is carried out, and the refining or spheroidal structure of the spheroidal pearlite ( Ps) is obtained.

本文作者研究了45钢的奥氏体（锻后的或重新加热的）通过控制冷却技术，使其碳化物粒化，得到Ps型的调质或球化组织。

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In addition, both bulk density and air content of fresh expanded pearlite thermal insulating mortar have effect on its thermal conductivity.

此外，新拌膨胀珍珠岩保温砂浆的体积密度和含气量对其导热系数有影响。

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The metallurgic investigation indicates that nodularity exceeds 90% and the content of pearlite in alloy is about 95%.

冶金学研究表明合金球化率超过90%，珠光体含量约为95%。

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Theoretical and experimental research on thermal insulation property of vacuum pearlite

真空珠光砂隔热性能的理论和实验研究

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This paper introduces the preparation of floating TiO 2 photocatalyst attached to the inflating pearlite surface by sol_gel technique using tetrabutyl titanate as material.

以钛酸四丁酯为原料，膨胀珍珠岩为载体，用溶胶-凝胶法制备可漂浮于水面的负载型TiO2。

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The metallographic analysis found mild spheroidization of pearlite in metallographic structures.

经金相分析发现，其金相组织出现了珠光体中度球化现象。

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The typical microstructure ( Q235): the surface layer is tempered sorbite; the transition layer is pearlite and ferrite, and the partial ferrite is acicular; the core is pearlite and ferrite and the grain fineness is 8~ 10 grade.

钢筋典型的金相组织（Q235）表层为回火索氏体，过渡层为珠光体+铁素体且部分铁素体呈针状，心部为珠光体+铁素体，晶粒度8～10级；

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A combustion experiment of coal water slurry as a fuel in expanded pearlite kiln was made.

通过水煤浆在膨化窑上燃烧试验,认为用水煤浆作膨化窑的燃料,技术是可行的,经济效益明显.

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Size of spheroidal graphite-2nd grade; Pearlite amount 90-95%;

石墨球大小2级，珠光体量90～95%；

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A Study on Spherular Pearlite Gradational Approach Based on Principal Component Analysis of Histogram

基于直方图主分量分析的珠光体球化评级方法的研究

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Strain-fatigue properties of pearlite and tempered sorbite in a C-Mn eutectoid rail steel have been studied by fully reversed constant total strain amplitude and plastic strain behavior in strain fatigue process has been investigated.

用全反向恒应变幅试验方法，研究了C-Mn轨钢珠光体及回火索氏体的应变疲劳行为，探讨了塑性应变在应变疲劳中的作用。

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The influence of granula morphology, grain size and distribution of EPS, variety and added quantity of expanded pearlite, super fine sand, binder and fiber, curing system on EPS thermal insulation mortar properties are analyzed.

分析了EPS颗粒形貌、EPS粒径和级配、膨胀珍珠岩和特细砂、粘结剂品种和掺量、纤维品种和掺量、养护制度等对EPS保温砂浆性能的影响。

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The second, the existing of graphites make the austenite become non-uniformly highly, which is advantageous to the formation of spheroidal pearlite;

由于石墨的存在，高温下奥氏体不均匀程度很高，有利于粒状四川大学硕士学位论文珠光体的形成。

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