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- Keywords laser remelting;scanning speed;dendrite secondary arm spacing;cooling rate; 激光重熔;扫描速度;枝晶二次臂间距;冷却速率;
- Keywords laser cladding;dendrite secondary arm spacing;temperature gradient;interface moving speed rate;cooling rate;microstructural heterogeneity; 激光熔覆;枝晶二次臂间距;温度梯度;界面推移速度;冷却速率;组织不均匀性;
- secondary arm spacing 二次枝晶间距
- The effect of counter-pressure casting parameters on secondary dendrite arm spacing (SDAS)of A357 alloy was studied. 研究了差压铸造不同工艺参数对A357合金二次枝晶间距的影响。
- The effect of counter-pressure casting parameters on secondary dendrite arm spacing of A357 alloy under different technology was studied. 研究了不同工艺条件下,差压铸造不同工艺参数对A357合金二次枝晶间距的影响。
- With the increase of the cooling rate, both the grain size and secondary dendrite arm spacing of A357 alloy decrease, and the distribution of Si phase is changed from a chain to a short strip or short bar. 随着冷却速率的提高,A357合金的晶粒尺寸和二次枝晶间距减小,Si相由链状分布变为短条状或短棒状分布。
- By increasing the speed of cooling, the dendrite arm spacing of austenite, especially the secondary dendrite arm spacing, could be decreased evidently, which was advantaged to improve the synthetic mechanical properties. 冷却速度增加可明显减小初生奥氏体的枝晶间距，特别是二次枝晶间距的缩小，对提高中铬铸铁的综合力学性能非常有利。
- Research on Secondary Dendrite Arm Spacing 二次枝晶臂间距的研究
- We can obtain the relationship between dendrite arm spacing and cooling rte by analyzing the result. 对AZ91合金得到冷却速率与枝晶间距的经验关系式为y=62.;861x-0
- Along with the increase of melt superheat time, the primary dendrite arm spacing decreases and the microstructure is refined. 随着熔体过热时间的延长，一次枝晶间距减小，组织越来越细密；
- secondary dendrite arm space(DAS) 二次枝晶间距
- secondary dendrite arm space(SDAS) 二次枝晶间距
- The calculated results showed that the disturbing could accelerate the grow of the secondary arms and the anisotropy was important to the dendrite growth. 计算结果表明：噪声的加入会促进二次枝晶的生长；各向异性系数对枝晶的生长有重要作用。
- Abstract The relations between the La, Ce, (La+Ce) rare earths compounds and the dendritical arm space( l DAS ) in ZL105 alloy cylindrical casting were studied. 针对ZL105合金圆柱体铸件，考查了镧、铈和镧铈混合稀土与二次枝晶间距的关系。
- Keywords antimony;primary austenite;secondary dendrite arm spacing; 锑;初生奥氏体;二次枝晶臂间距;
- A bright red welt rose on his arm. 他的手臂上起了明显的条状红肿。
- He hold on to my arm with a tenacious grip. 他紧紧抓住我的手臂不放。
- Effect of Chill on Secondary Dendrite Arm Spacing of Aluminum Alloy Casting 冷铁对铝合金铸件二次枝晶间距的影响
- I felt something crawling up my arm. 我感觉到有什么东西爬上我的手臂。
- The falling slate sliced into his arm. 落下来的一块石片划破了他的手臂。
