发现外加应力对珠光体转变有显著影响。
It has been found that applied stress has significant influence on pearlite transformation.
钢中珠光体转变属典型的扩散型共析转变。
Pearlitic transformation in steel is a typical diffusion eutectoid transition.
强度较低的试样中第二相组织为团状珠光体。
The second microstructure in lower strength samples is agglomerate pearlite.
相变后的最终组织为大量铁素体加部分珠光体。
The microstructure after phase transformation consists of ferrite mainly and some pearlites.
结果表明：珠光体温变形显著加快了碳化物球化过程。
Results showed that warm deformation of pearlite will accelerate greatly the spheroidizing process.
因而有必要研究珠光体耐热钢的损伤规律及安全评估技术。
Therefore it is necessary to research the damage law and security access technology of the pearlite heat resistant steels.
含铁碳化物或含碳铁的固体溶体，冷却可形成珠光体或马氏体。
A solid solution of ferric carbide or carbon in iron; cools to form pearlite or marten site.
通过二次随流孕育，稳定生产铸态珠光体球铁曲轴的生产工艺。
Crankshafts of as cast pearlite ductile iron have been produced stably by double random inoculation.
最后讲述了珠光体生长的台阶机制及一些非铁碳合金的共析组织。
At the last, the steps mechanism of pearlitic growing and some eutectoid structures of non Fe-C alloys are pointed out.
在过去几十年X 70级管线钢的典型组织一直是铁素体-珠光体。
In the past decades of years the typical structure of pipeline steel X70 was the ferrite-pearlite.
结果表明，这种黑色团状异常组织是由片间距不同的团状珠光体组成。
The experimental results show that this block and black round structure is composed of pearlite blocks with variable plate intervals.
组织分析发现，未溶碳化物可成为珠光体转变的核心，促进珠光体转变。
The microstructure analyses find that remaining carbide could be a nucleus of pearlite transformation and accelerate pearlite transformation.
结果表明，塑性变形主要集中在铁素体中，珠光体团也可发生塑性变形。
It was shown that plastic deformation was mainly undergone in ferrite, and pearlite colony could also deform.
就像以前说的一样，当缓慢冷却到这温度时所有剩余奥氏体转化为珠光体。
As before, any remaining austenite transforms to pearlite upon slow cooling through this temperature.
同时可以获得细小的铁素体和珠光体组织，各项指标满足国家标准的要求。
The fine ferrite and pearlite were obtained in the meantime and all kinds of properties can meet the request of national standard.
当珠光体层片与拉伸轴斜交时，裂纹通过渗碳体和铁素体交替断裂而扩展；
When the lamellae made an angle with the tensile axis, the crack propagated alternatively in cementite and ferrite.
硼有加速珠光体成长率的作用，无论在亚共析或共析钢中皆有同样的现象产生。
It was found by experiments thatboron increased the growth rate of pearlite, both in hypoeutectoid and eutectoid steels.
结果表明：珠光体裂纹萌生与扩展方式取决于珠光体层片和拉伸轴的位向关系。
The results indicate that the crack initiation and propagation mechanism depends on the orientation of pearlite lamellae with respect to the tensile axis.
球墨周围的铁素体和珠光体是贫铈的，而远离球墨的珠光体和莱氏体是富铈的。
Ce is depleted from ferrite and pearlite surrounded by nodular graphite, and enriched in pearlite and ledeburite far apart from nodular graphite.
通过统计分析，研究了高珠光体含量球铁的基体硬度与球化率和珠光体含量的关系。
By statistical analysis, the relationship between the matrix hardness of the high pearlite-containing nodular iron and its nodularity and pearlite content was investigated.
利用损伤力学原理，研究了珠光体球墨铸铁在疲劳和拉伸载荷作用下的损伤演变规律。
According to principle of damage mechanics, the evolutional law of damage in pearlite ductile cast iron has been studied under fatigue and tension loading.
特定过冷度下的层片间距与正向界面推移速率的关系是珠光体生长动力学的主要问题。
The relationship between the lamellar spacing and the edgewise growth velocity under the specific undercooling is the core of growth kinetics.
高于此点，由于超过共析点钢完全由珠光体和退火状态的渗碳体组成，硬度增加并不多。
Above this point the hardness can be increased only slightly, because steels above the eutectoid point are made up entirely of pearlite and cementite in the annealed state.
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。
The result showed that the Rockwell hardness of the high pearlite-containing nodular iron camshaft increased with increasing of its nodularity and pearlite content.
珠光体钢轨钢的组织与性能之间的关系、合金元素的作用机理一直是人们不断研究的课题。
Relationship between microstructure of pearlitic rail steels and mechanical properties, and the effects of alloying elements are subject, which people have always been studying.
作为结果的组织结构是初步的共析铁素体(在共析反应前的铁素体)和部分珠光体的混合物。
The resulting structure is a mixture of primary or pro-eutectoid ferrite (ferrite that formed above the eutectoid reaction) and regions of pearlite.
扫描电镜分析表明：在相同的保温时间内，随正火温度的升高， 片层状珠光体越来越密集。
The result of SEM analysis shows that, within the same holding time, with normalizing temperature increasing, the layer-mesostructure is denser and denser.
珠光体轨道钢是目前我国铁路轨道采用的主要钢种，其性能特点是抗磨损性能好，屈服强度高。
The pearlitic rail steel was widely used as rail track in China for its prominent performance in anti-wearing and high yield strength.
珠光体轨道钢是目前我国铁路轨道采用的主要钢种，其性能特点是抗磨损性能好，屈服强度高。
The pearlitic rail steel was widely used as rail track in China for its prominent performance in anti-wearing and high yield strength.
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