The property and behavior of twin roll thin strip is greatly affected by three dimension size of columnar and equiaxed crystal grains in the solidification structure of thin strip The growth of crystal grain has three dimension feature during casting process of thin strip, So the token of three dimension size of crystal grain cannot be realized by tradtional token method.
双辊薄带凝固组织中柱状晶粒和等轴晶粒的尺寸大小对薄带的性能和行为有非常重要的影响 ,在薄带铸造过程中由于晶粒的生长具有三维特征 ,采用传统表征方法无法实现对薄带凝固组织中晶粒三维尺寸大小的表征 ,本文运用定量金相和概率论知识 ,在对晶粒形状作出合理假设的基础上 ,建立了双辊薄带凝固组织中柱状晶粒和等轴晶粒三维尺寸的表征表达式 ,实现了柱状晶粒和等轴晶粒三维生长特征的定量描述。
The experimental results show: higher the crystallization degree is and more reasonable the diameter distribution of Ni(OH) 2 particle are, higher the packing density of product is; higher the crystal grain of the particles is, higher the electroch.
研究结果表明，Ｎｉ（ＯＨ）２颗粒的结晶度越高、颗粒的粒径分布越合理，产品的堆积密度越高；Ｎｉ（ＯＨ）２晶体的晶粒越小，产品的电化学活度越高。
Analyzed the 3003 aluminum alloy cast-rolling blank when cold rolling processing causing the thick crystal grain reason.
分析了铸轧法生产的3003铝合金板坯在冷轧中产生粗大晶粒的原因,并通过不同试验工艺方案,就如何避免其晶粒长大找到了具体的措施。
Research on grain refining effects and qualities of several refiners;
不同细化剂的质量及细化晶粒效果研究
Investigation the Relationship Between Welding Hot Crack and Grain Size;
焊接热裂纹与母材晶粒粗大的关系讨论
Grain Size Change and Control of 3102 Aluminum Alloy Foils Fin during Casting-rolling Process;
3102合金翅片铝箔铸轧过程的晶粒变化与控制
The grain sizes of carbon steel with different finishing rolling temperature have been investigated by EBSD.
利用扫描电镜的EBSD(电子背散射衍射)附件,对大生产不同终轧温度下的碳素钢热连轧板中铁素体的晶粒尺寸,晶粒取向分类等进行研究。
And the effect of temperature and C0 2 partial pressure on thickness and grain size of the scales is studied by using Scanning Electron Microscope(SEM).
结果显示,在试验条件下,3种材料腐蚀产物膜的断面形貌显示出双层结构,表层是晶体规整的 结晶状态,表层与基体之间为类似泥浆状的固体薄层;3种材料在模拟采出液中腐蚀产物膜的厚 度和晶粒大小随着温度的变化情形大致相似,在120℃时均达到了最大,而极小值并不相同;膜 厚和晶粒大小的极大值或极小值所对应的温度3种材料均相同;3种材料的腐蚀产物膜厚度或表 面晶粒大小随CO2分压变化规律大致相近,在CO2分压为6。
The effects of temperature on the scale thickness of corrosion product and crystal average grain size of the corrosion products were analyzed using the scanning electron microscope.
用扫描电子显微镜 (SEM )对比分析了腐蚀产物膜的厚度和表面平均晶粒大小随着温度改变的规律。
A self-made directional solidification furnace was used to fabricate high purity aluminum(HPA) ingots,and the morphology of grains was studied.
采用自制的定向凝固提纯炉定向制备了大直径高纯铝圆锭,并对其定向凝固组织中晶粒的生长状况进行了研究。
The results show that it is rare earth remained in steel that makes the temperature of Ar_1 decline gradually,the temperature of Ms increase,austenite grains become fine and pearlite microstructure quantity increase.
研究了BNbRE钢中残留稀土元素对其相变临界点、退火后珠光体组织及热轧态奥氏体晶粒的影响。
In this paper is given the experimental analysis of aluminum specimen with large grains in measuring using light.
采用光测手段对大晶粒铝试件拉伸时的细观变形场作了较为深入的分析。