A NEW METHOD TO COMPUTE THE BEHAVIOR OF PHASE TRANSFORMATIONS AND DEPTH OF THE DECARBURIZED FERRITE

来源 :第七届低合金高强度钢国际会议 | 被引量 : 0次 | 上传用户:brettymate
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  An new method is proposed to predict in sequence the phase transformation behavior and the depth of the decarburized ferrite layer with simultaneous scaling of a steel during cooling process from the measured temperature history.This proposed method successively couples a set of mathematical models describing the temperature evolution,phase transformation,decarburization and oxidation.The dilatometry experiment was performed to verify the proposed method.Results reveal that the measured depth of the decarburized ferrite layer agreed well with the predicted depth.The predicted pearlite volume fraction nearly coincided with the measured value as well.
其他文献
Thick gauge strip production using thin slab casting and direct rolling(TSDR)technologies show important challenges due to the lack of high total reduction from slab to final strip.In these cases,a co
Microstructure evolution during hot rolling depends on several processing variables.These are the furnace soaking temperature and,for each pass in the schedule,the temperatures,the strains,the strain
Vanadium microalloying is highly effective in high strength strip steels produced by thin slab casting and direct rolled process.Because of the high solubility of V(C,N)in austenite,vanadium is likely
The flow stress under typical hot coiling conditions has been quantified for low C and Nb-Ti(V)microalloyed steels.The equation is intended for calculating the amount of bending torque required during
Ultra-fast cooling(UFC)has been increasingly applied in industry,but accompanying with great changes of rolling strategy.It is therefore of importance to evaluate the characteristics of steels produce
The differences of microstructure and property of non-quenched and tempered bainitic steel under different finish rolling temperatures was analyzed by the methods of color metallographic,scanning elec
Before being subjected to water quenched,16mm WDL690D steel was heated at 910℃,930℃,950℃and 970℃for 20min,40min and 60min,respectively.Microstructures of these samples after heat treatment were observ
A new V-Ti-Mo complex micro-alloyed hot-rolled high strength sheet steel was developed by controlling a thermomechanical controlled processing(TMCP)schedule,in particular with variants in coiling temp
To develop thickness>60mm,yield strength>550MPa high-strength steel plate,the effects of heat treatment process on the microstructure and mechanical properties of plate specimens were investigated on
Potential benefits of vanadium in heat treated medium carbon bar steels are considered by reviewing examples from several recent studies.Emphasis is placed on microstructural development,strength,and