macrosegregation相关论文
Effect of mold electromagnetic stirring on solidification structure and solute segregation in contin
The effect of mold electromagnetic stirring(M-EMS)on the solidification structure and solute segregation in the con-tinu......
Effect of vertical electromagnetic stirring on solute distribution in billet continuous casting proc
A volume averaged columnar solidification model,which couples the flow,temperature and solute concentration fields,is ap......
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Numerical Simulation of Macrosegregation Caused by Thermal-Solutal Convection and Solidification Shr
Solidification shrinkage has been recognized as an important factor for macrosegregation formation.An arbitrary Lagrangi......
Meshless methods represent a very fast developing field of computational mechanics.Their main distinction from classical......
A Three-Dimensional Comprehensive Model for the Prediction of Macrosegregation in Electroslag Remelt
A transient three-dimensional(3D)comprehensive model is established to understand the macrosegregation in the electrosla......
RESEARCH ON MANUFACTURE AND QUALITY CONTROL OF MEDIUM CARBON VESSELS FOR RESISTANCE TO HYDROGEN INDU
With the exploitation of gas mixed with sulfur,the requirement of hydrogen induced cracking(HIC)resistance for medium ca......
The phase separation and dendrite growth characteristics of ternary Fe-43.9%Sn- 10%Ge and Cu-35.5%Pb-5%Ge monotectic all......
Numerical simulation of macrosegregation in continuously cast gear steel 20CrMnTi with final electro
A 3D/2D hybrid multi-physical-field mathematical model, which takes into consideration the thermosolutal buoyance, was d......
在熔体强剪切作用下,采用不同铸造速度的半连续铸造工艺制备铸锭,研究熔体强剪切和其作用下铸造速度对浮游晶和铸锭中心负偏析的影......
Structure and mechanical properties of AZ31 magnesium alloy billets by different hot-top semi-contin
AZ31 alloy billets of 200 mm in diameter were produced by three different processes of conventional direct chill (DC) ca......
Macrosegregation as a consequence of solidification of a binary Pb–48 wt% Sn alloy in two-dimensional rectangle cavity ......
Investigation of the solute transportation coupled with heat transfer and fluid flow during twin-rol
Mathematical model of solute [C] distribution in twin-roll strip casting process has been setup successfully with Calcos......
综述了磁场条件下偏晶合金凝固过程研究的新进展,对磁场条件下偏晶合金凝固过程的研究成果及其局限性进行评述。单一磁场中磁感应......
The influence of billet size on continuous casting was studied using the 3-D coupled turbulent flow,solidification and s......
通过Al-40Cu过共晶合金在10μm/s的凝固速率下定向凝固,得到了4mm×120mm铸锭。采用光学显微镜、成分分析等手段研究了定向凝固......
Solute Distribution in Columnar Crystal Zone and Influences of Correlative Factors for Continuous Ca
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Effects of correlative factors on the interdendritic melt flow brought by the bulge in continuous ca
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
A novel method for the analysis of composition distribution of titanium alloys over a large area (64mm × 72 mm) was inv......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Investigation of the solute transportation coupled with heat transfer and fluid flow during twin-rol
Mathematical model of solute [C] distribution in twin-roll strip casting process has been setup successfully with Calcos......
The phase separation and dendrite growth characteristics of ternary Fe-43.9%Sn- 10%Ge and Cu-35.5%Pb-5%Ge monotectic all......
Effects of correlative factors on the interdendritic melt flow brought by the bulge in continuous ca
The effects of various factors on the flow speed of interdendritic melt were analyzed in detail in the process of contin......
Macrosegregation in Fe-0.8 wt pct C alloy solidifying with equiaxed morphology was numerically simulated. Based on a two......
Structure and mechanical properties of AZ31 magnesium alloy billets by different hot-top semi-contin
AZ31 alloy billets of 200 mm in diameter were produced by three different processes of conventional direct chill (DC) ca......
Solute Distribution in Columnar Crystal Zone and Influences of Correlative Factors for Continuous Ca
The expression of the solute distribution in columnar crystal zone was deduced when the solid-liquid interface bended pe......
基于国内某厂齿轮钢小方坯连铸生产过程,利用ProCAST软件建立移动切片模型,能够高效模拟连铸过程中的宏观偏析,模型分别模拟研究了......
研究了在单独场源－直流磁场作用下，Ａｌ－１８Ｓｉ（质量分数．％）合金定向凝固时形成富Ｓｉ特殊表面的现象；直流磁场力对熔体无搅拌作用，其磁感应强度为０．２４Ｔ左右时，开......
应用金属原位分析仪，对铸坯的成分偏析状况进行了分析。铸坯试样为120mm中等厚度连铸坯。分析结果发现：铸坯中心偏析成岛状出现在中......
Macrosegregation in Fe-0.8 wt pct C alloy solidifying with equiaxed morphology was numerically simulated.Based on a two-......
为了对定向凝固钢锭中的宏观偏析进行预测，本文对合金凝固过程的统一模型进行了修正，提出一个适用于低合金的凝固统一模型。该模型以......
利用等轴球晶三相凝固模型模拟了A356铝合金半固态浆料冷却斜槽法制备过程，研究了晶粒密度、尺寸及固相分数的分布与工艺参数的关系......
自1960s Flemings时代起人们经过半个世纪的努力已对铸锭内铸态组织和宏观偏析形成的物理机理有了定性或半定量的认识，但还是难以对......
The effect of electromagnetic field on macrosegregation of continuous casting aluminum alloy was stud-ied. 7075 aluminum......
采用氩气保护的低频脉冲变极性氩弧焊（LPVPTIG）、氦气保护的直流氩弧焊（DCTIG）和氩气保护的高频脉冲变极性氩弧焊（HPVPTIG）等焊接方法获......
采用拓展连续模型预测大尺寸2024铝合金半连铸铸锭的Cu和Mg元素的偏析分布。该模型耦合宏观传输方程与近似相图的微观偏析模型来预......
在连续铸钢生产中,尤其对高碳钢,中心偏析是一种常见的有害缺陷。本文对二冷区位置电磁搅拌改善连铸方坯的中心偏析进行了实验研究......
针对目前珠江钢铁有限责任公司薄板坯连铸连轧生产线（CSP）生产的集装箱板用钢SPA-H铸坯的宏观偏析进行了分析研究，从导致铸坯宏观中心......
The macrosegregation formation in an ingot and the influence of rotating mould upon it wereanalysed on the basis of inte......
The macrosegregation formation in an ingot and the influence of rotating mould upon it wereanalysed on the basis of inte......
在常规重力场条件下,通过极快速液淬冷却的实验方法,分析了Al-Bi过偏晶合金在难混溶区凝固过程中,不同凝固时刻和温度下富Bi相液滴......
为研究DC铸造AL-Mg合金大尺寸扁锭宏观偏析及微观组织分布特征,从而对后续探究偏析的形成以及改善偏析提供理论参考,本试验利用直......
Macrosegregation Quality Criteria and Mechanical Soft Reduction for Central Quality Problems in Cont
In order to study the central quality of continuously cast tool steel slabs, the simple model has been developed to simu......
本文对薄件点焊熔核旋流现象进行了较系统的研究，指出旋流的实质是严重的宏观偏析，产生的内部原因是二种材料成分，组织和性能的不同，而......
使用ＳＩＭＰＬＥＲ算法，基于体积平均的描述对铸件凝固宏观传输过程的温度场、溶质场、流场耦合模型进行了求解。应用此模型对铸钢件凝固过程进行......
Macrosegregation is the major defect in large steel ingots caused by solute partitioning and melt convection during cast......
