proeutectoid ferrite

Microstructure of the deposited metals is composed of acicular ferrite and a little proeutectoid ferrite .

熔敷金属组织主要是针状铁素体，少量的先共析铁素体。

The microscopic structure of the weld mainly consisted of proeutectoid ferrite , acicular ferrite and pearlite .

焊缝金属的显微组织主要由先共析铁素体、针状铁素体和珠光体组成。

Amount prediction of proeutectoid ferrite in flux cored wire welded seam

药芯焊丝焊缝中先共析铁素体的数量预测

The effect of kinetics on hot deformation of austenite to isothermal transformation of proeutectoid ferrite

热变形温度对先共析铁素体等温转变动力学的影响

Thermodynamic Calculations on the Proeutectoid Ferrite Transformation of Deformed Austenite

热变形奥氏体先共析铁素体的热力学计算

An investigation on the morphology of the proeutectoid ferrite in hypoeutectoid steel

亚共析钢中先共析铁素体形态的研究

Thermodynamic calculations on the deformed-austenite → proeutectoid ferrite transformation

形变奥氏体中的铁素体相变形变奥氏体→铁素体的热力学计算

The microstructure of weld seam columnar grain are composed of proeutectoid ferrite 、 FSA 、 massive ferrite and acicular ferrite .

焊缝柱状晶区的组织由沿柱状晶界分布的先共析铁素体+侧板条铁素体+块状铁素体+针状铁素体组成；

In the γ + α two phase region , precipitation of proeutectoid ferrite film along austenite grain boundaries is the main reason for the embrittlement of the steel .

在γ+α两相区，Nb对钢的塑性影响较小，钢的脆性是沿γ晶界薄膜状先共析铁素体α相的析出造成的。

The results indicated that the area of the dynamic continuous cooling transformation curves had two fields : proeutectoid ferrite was the transformation production in a field , bainite was in another .

研究表明，在动态CCT曲线中，相变区域主要有2个部分：A→F转变区和A→B转变区；

At the meantime , this alloy method can effectively reduce the content of proeutectoid ferrite in weld metal , and promoting the forming of the acicular ferrite , with great impact ductility of weld joint .

同时能够减少焊缝金属中先共析铁素体的含量，促进针状铁素体的形成，提高焊接接头的低温冲击韧性值。

The results show that the microstructure of the steel obtained after cooling is proeutectoid ferrite , eutectoid ferrite from the austenite , a little carbide-free bainite , granular bainite and martensite .

结果表明，该钢在冷却过程中组织均为未溶的先共析铁素体、从奥氏体中析出的共析铁素体、少量的无碳化物贝氏体、粒状贝氏体和马氏体。

Synopsis For ternary alloy of Fe-C-Mn , the segregation of manganese and the solute drag effect will take place at the interface of ferrite-austenite during the process of proeutectoid ferrite nucleation and growth .

Fe-C-Mn三元合金在先共析铁素体形核和长大过程中，在铁素体和奥氏体晶界处会发生Mn的晶界偏析和溶质的拖曳效应。

For the specimens of steels 15 and 45 , it was observed that the deformation is mainly undergone in proeutectoid ferrite , as well as shear , multipe-slip and colony rotation exhibited in pearlite .

结果表明，15和45号钢形变主要在铁素体中进行，珠光体可发生剪切形变与旋转等现象。

The result shows that , for the thinner specimen , plastic deformation occurs firstly in proeutectoid ferrite and then grows along the prior austenite grain boundary , and then , a microcrack initiates and propagates preferentially at the interface of proeutectoid ferrite and pearlite colony .

结果表明，对薄试样拉伸变形时，不论是否有氢，先共析铁素体优先发生塑性变形，微裂纹沿先共析铁素体与珠光体团的边界形核、扩展；