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Electromagnetic constrained forming technology and the formation mechanism of its product: equiaxed grain structure 电磁约束成型技术及所制备材料等轴晶组织的形成机制
equiaxed grain structure 等轴结晶构造
The microstructure of welding seam is affected by cooling rates.The microstructure of welds consists of dendritic structure near melted line and equiaxed grain at the centerline of welding seam. 冷却速度对显微组织的形成影响明显，在靠母材的焊缝两侧，焊缝的显微组织为树枝晶，而焊缝的中心为等轴晶；
The key to solve these problems is enlarging equiaxed grain zone and fining grain size. 控制连铸坯凝固过程，可有效地减小柱状晶区，扩大等轴晶区，从而改善铸坯中心缩松和中心偏析。
The results showed that ratio of equiaxed grain in the slab of cold rolled non-ori ented silicon steel comes up to above 50 percent. 结果表明,电磁搅拌可以明显改善铸坯的凝固组织,冷轧硅钢铸坯等轴晶比率达到了50%25以上。
PQ &AQ are excellent with PIP, Heavy film grain structure,buyable for 5 stars. 音画质量一流，电影般画质，颗粒感强，收藏5星。
The proportion of equiaxed grain of ferritic stainless steel treated with vibration and refrigeration could be increased up to 80%. 铁素体不锈钢液经振动激发形核处理后，凝固组织中的等轴晶率超过了80%25。
The results show that the microstructure of the cladding wire by drawing at room temperature is vimineous grain as fibril shape from prime equiaxed grain. 结果表明:显微组织自原始的等轴晶变为细长条纤维状,纤维直径与形变量近似地成反比,纤维长度与形变量的平方近似地成正比;
The improved grain structure also results in shinier solder joints than traditional lead-free alloy alternatives. 改善后的颗粒结构还能够让焊锡结合点的光洁度明显优于传统的无铅合金替代品。
Oak is a hard, light to medium gray-brown, tough, short fibred wood with a distinctive grain structure. 橡木是一种坚硬的，浅到中等灰棕色，坚韧，短纤维带与众不同的纹理结构的木材。
The results show that pulse electric current can refine solidification macrostructure of the metal, and macrostructure is transformed from bulky columnar grain to fine equiaxed grain. 实验结果表明:脉冲电流能够细化金属的凝固组织,使粗大柱状晶变成细小等轴晶。
Pre-deformation prior to overaging remarkably refine and spheroidize the grain structure of AA2195 Al-Li alloy. 过时效前的轧制预变形明显细化并等轴化AA2195 铝锂合金的晶粒。
Isothermal normalization can improve or eliminate the banded structure and duplex grain structure in forging blanks. 结果表明,零件毛坯等温正火可以获得比普通正火更细的晶粒、更均匀的金相组织、更小的硬度散差。
The resulting solder joints have demonstrated improvements in grain structure and have shown a marked increase in reliability. 得到的焊点的晶粒结构得以改善,焊点的可靠性得到了显著提高。
The formation mechanism of equiaxed grains and micro cavities during spray forming process are discussed. 分析了等轴晶组织和显微孔洞在喷射成形中生成的机制。
It is found that by a thermo-mechanical treatment under severe undercooling, an ultra-fine and gradient grain structure can be obtained. 同时采用具有自主知识产权的深过冷热机械处理获得梯度细晶显微组织,认为通过轧制形变前的深过冷进一步降低形变温度是获得超细晶粒的关键。
The mushy zone was divided into dendrites region and free equiaxed grains region by the dendritic coherency point. 在模型中按照临界固相分数将糊状区分为紧密树枝晶和自由等轴晶两个不同的区域。
Column grains develop well in casting blank, with transcrystalline grains and a little equiaxed grains in the center. 实验中，铸坯中柱状晶发达，有穿晶出现，铸坯心部有少量等轴晶。
For the ferritic types, the pearlite proportion within the grain structure of the metallic base material shall not exceed 10 %. 对于以铁酸盐为主要成分的类型，金属材料的颗粒结构中，珠光体含量不得超过10%25。
The results show that the as-deposited microstructure possesses the feature of whole equiaxed grains and fine distributed micro cavities on the grain boundaries. 沉积态高镁铝合金基体呈全部等轴晶组织并存在少量显微孔洞是沉积态组织的主要特征。