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- Within each dendrite arm, microsegregation occurs. 在每个晶体枝杈内，也存在着微观偏析。
- 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
- 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。
- 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；
- 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
- The more the increasing of cooling rate or pre-deformation, the more the secondary dendrite arms are easy to coarsen. 冷却速率越大或预变形处理以后的试样在熔化过程中更容易发生二次枝晶臂之间的合并。
- The more the increase of cooling rate or pre-deformation, the more the secondary dendrite arms are easy to coarsen. 冷却速率越大或预变形处理以后的试样在熔化过程中更容易发生二次枝晶臂之间的合并。
- Dendrite Arm Spacing in ZL105 Alloy Castings ZL105合金铸件中的二次枝晶间距
- secondary dendrite arm space(DAS) 二次枝晶间距
- At the same time, the nucleation density affects the dendrite morphologies, especially the growth of secondary and tertiary dendrite arms. 形核密度在一定程度上影响着枝晶形态，特别是影响着二次和三次枝晶的生长。
- secondary dendrite arm space(SDAS) 二次枝晶间距
- The simulated results reproduce the growth of secondary and tertiary dendrite arms, the competative growth and the grain boundary segregation, etc. 模拟结果再现了焊接熔池中二次、三次枝晶的生长，枝晶间的竞争生长以及晶界偏析等微观现象。
- 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。
- 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。
- 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。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
