珠光体

基于单元胞（unitcell）模型分析，计算了铁素体/珠光体钢的应力-应变曲线。

Flow stress curves of ferrite / pearlite steels were calculated based on unit cell model .

单一添加Co元素只获得珠光体组织。

Respectively adding Co element , get pearlite only .

单独添加Ni元素得到珠光体组织片层最细。

Respectively adding Ni element can get the most fine lamellar pearlite .

珠光体裂纹萌生与扩展的TEM原位观察

In Situ TEM Observation of Crack Initiation and Propagation in Pearlite

珠光体钢微观结构和断裂过程的TEM研究

TEM investigation on Microstructure and fracture process of a pearlitic steel

珠光体与奥氏体异种钢TIG焊接头结合性能研究

Study on Bonding Property of Pearlitic and Austenitic Dissimilar Steel TIG Welded Joint

珠光体组织的疲劳裂纹扩展方式可分为A，B，C三种类型。A型为裂纹同时横切多层铁素体片和渗碳体片而扩展；

Observations were demonstrated of 3 different types of the fatigue crack propagation of pearlitic structure : type A & the crack intersects the multiple ferrites and cementites simultaneously ;

用金相显微镜、扫描电镜（SEM）及带有切口的三点弯曲试样研究了显微组织对珠光体钢疲劳裂纹扩展速率的影响。

The effect of microstructure on propagation rate of fatigue crack was investigated by SEM and three point bending specimens with notch .

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

由于在钢中加入Mn降低了奥氏体的活性，有利于非平衡相的形成，如珠光体的退化。

The addition of Mn into steel decreases austenite activity , which is beneficial to the formation of non-equilibrium phase such as degenerate pearlite .

加入Al加速珠光体转变，也使显微组织细化，冲击韧度提高。

It fines microstructure , and improves impact toughness , the addition of minor-alloying element Al accelerates the pearlite transformation and it also fines microstructure and improves impact toughness .

在普通球墨铸铁的基础上，加入Cu、Sb合金元素，通过余温正火工艺，获得铸态珠光体球墨铸铁。

Based on common nodular cast iron , a pearlite nodular cast iron was obtained by normalizing and adding alloying elements of Cu , Sb .

研究了珠光体钢和奥氏体不锈钢复合管钨极氩弧焊（TIG）接头的性能。

Properties of pearlitic steel and austenitic stainless steel compound pipes TIG welded joint are studied in this paper .

钛元素的引入，消除了钢中的C、N间隙原子，抑制了珠光体组织的生成，净化了铁素体晶界，提高了铁素体组织的均匀性，使其耐腐蚀性能显著提高。

And it also can eliminate C and N interstitial atoms in steel , restrain the creation of pearlite , clean ferrite grain boundary , increase ferrite evenness and obviously increase corrosion resisting property .

研究表明：在渗碳体（FeC）-奥氏体（A）界面，珠光体中渗碳体优先形核于A内凹处的内侧。

As showed in this investigation , the cementite nucleating in pearlite prevails at the inside of concave boundary of austenite on Cementite ( Fe_3C ) - Austenite ( A ) boundaries .

过渡区为铁素体和珠光体，过渡区的宽度为50μm.不锈钢凝固层的实际晶粒度为5.8～6.3。

The width of the transition region is about 50 μ n ; the factor grain size of stainless layer is between 5.8 and 6.3 .

珠光体钢的ECAP变形ECAP变形低碳钢的组织变化规律

Structure transformation rule of ECAP-deformed low carbon steel

La改变珠光体的形态、分布和数量，减小珠光体的片层间距和渗碳体的片厚。

The dissolved La in the steel has the effects of increasing the amount of ferrites , and reducing the pearlite lamellar spacing and the cementite thickness .

采用Cu、Sb合金化元素和余温正火工艺获得铸态高强度和具有良好韧性的珠光体球墨铸铁。

An as-cast high-strength pearlite ductile iron with good toughness was fabricated by method of the addition of Cu , Sb alloying elements in conventional nodular cast iron .

计算工作说明，由计算得到的CCT曲线（珠光体转变开始线）和实测结果吻合良好。

The main results are as follows : The calculated CCT diagrams are in good agreement with the observed ones .

结果表明：研制钢是由铁素体和珠光体组成，向钢中添加高的V和N元素，有利于增加更多的弥散析出相，提高其强度。

The results showed that the studied steel was made of ferrite and pearlite , when adding mass V and N to the steel it was benefit to offer a mount of precipitated phase and improve the strength .

低碳含Zr钢的组织为铁素体+珠光体，随着Zr含量增加，钢中含Zr夹杂物的尺寸有所增大。

The microstructure of Zr-doped steels is found to be ferrite and pearlite . With the increase of Zr content , the size of inclusions containing Zr increases appreciably .

Ti（C.N）颗粒增强铁基复合材料组织由细粒状珠光体加上针状珠光体基体和Ti（C，N）增强颗粒组成。

Ti ( C , N ) particles reinforced iron base composite tissue form with the fine granular and needle pearlite steel substrate and Ti ( C , N ) enhancing particle composition .

保护气体为20%CO2+80%Ar的焊缝成形比纯Ar的好。两种保护气体下的焊接和热影响区组织都为珠光体+铁素体，没有出现淬硬组织。

The shielding gas of 20 % CO2 + 80 % Ar weld shape than that of pure Ar. Two protective gas welding heat affected zone of pearlite + ferrite , no hardened organizations .

用SEM、TEM等方法研究了一种原始组织为层片状珠光体的高碳钢在多向温变形（楔横轧）和单向温变形（压缩）条件下试样心部与表层显微组织的演变情况。

The microstructure evolution of high carbon steel with lamellar pearlite structure during multi-axis and single-axis warm deformation ( warm cross wedge rolling and warm compression ) was investigated by the use of SEM , TEM etc.

水静压抑制Fe-C和钢中体积膨胀型相变，如铁素体、珠光体、贝氏体和马氏体相变。

Hydrostatic pressure depresses the dilatational transformations , such as ferrite , pearlite , bainite and martensite transformations in Fe-C and steel .

在过去几十年X70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，随铝含量增加，A1温度升高，珠光体相变组织片层间距减小，网状碳化物减少。

The result indicates that temperature A1 goes up as the Al content increases , while lamellar distance in pearlite phase transformation macrostructure decreases and the network carbide decreases .

Si含量在2.0%～2.4%，Mn含量不小于0.57%时，基体中珠光体含量可达98%以上；

When the content of Si is in 2.0 % ~ 2.4 % and the content of Mn is greater than or equal to 0.57 % , the pearlite content in matris can be higher than 98 % .

金相显微组织均匀、细化，无条状MnS夹杂物、无铁素体/珠光体带状偏析的管线钢抗HIC性能优良。

The material with even , fine micro-structure , without MnS inclusion , without ferrite / pearlite banded microstructure has good HIC performance .