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 (SDAS)of A357 alloy was studied.
用数学回归的方法得到了AZ91镁合金的凝固冷却速度与二次枝晶间距的定量关系式。
The quantitative relationship between secondary dendrite arm spacing and solidification cooling rate of AZ91 was obtained by regressive analysis.
在此基础上，研究AZ31镁合金在一次变形和二次变形后的常温抗拉强度的变化规律。
On this basis, variation law of AZ31 tensile strength at room temperature was studied after the once deformation and twice deformation.
研究了AZ31镁合金在一次变形和二次变形后的常温抗拉强度的变化规律。
The variation law of AZ31 tensile strength at room temperature was studied after the once deformation and twice deformation.
利用电阻炉加热，采用电子显微镜及图象分析仪，研究了近液相线铸造a 356铝合金在二次加热过程中的组织变化。
Using resistance furnace, the structure of A356 aluminum alloy casted by nearby liquidus semi-continuous was studied during remelting by means of electron microscope and image analysis apparatus.
研究了近液相线半连续铸造ZL201合金的微观组织及其在二次加热过程中的变化。
The casting and remelted microstructures of ZL201 alloy cast by liquidus semi-continuous casting(LSC)were studied.
通过对AZ31镁合金铸棒在不同变形参数下进行一次变形和二次变形，并对其组织演变过程和力学性能进行分析讨论。
The two-stage deformation was processed to AZ31 alloy as cast at different parameter condition, and structure evolution and mechanical property was analyzed.
二次加热使合金组织中产生部分液相，在650?。
Reheat makes liquid phases emerge in the alloy, when the warming temperature is 650?
实验结果表明，合金的组织随着B加入量的增加变得粗大，当B加入量为0.05%时出现粗大枝晶，0.1%时枝晶进一步长大且出现二次枝晶。
When the B content is 0.05%, the coarse dendrite is found in cast structure of alloy, When B content is up to 0.1%, dendrites grow further and secondary dendrites appear.
对铝及铝合金在磺基水杨酸槽液中及另一有机酸槽中进行二次氧化，获得了装饰效果良好的瓷质氧化膜。
Aluminum and its alloy with decorate ceramic oxide coating were developed by secondary oxidation process in sulfa-salicylic acid bath and an organic acid bath.
借助于高放大倍率的二次复型组织，观察了LF6铝合金超塑变形后的表面晶粒组织。
With the secondary duplicated model structure with high magnification, the surface grain structure of LF6 aluminum alloy superplastically deformed is observed.
储氢合金，合金表面改性方法，电池和碱性二次电池负极。
Hydrogen-absorbing alloy, method of surface modification of the alloy, negative electrode for battery and alkaline secondary battery.
介绍了镁合金半固态触变成形技术中的三个关键技术：非枝晶组织半固态浆料的制备、坯料的二次加热、半固态触变压铸成形。
This paper introduced the key technology of SSP(semi-soild process) thixomolding of magnesium alloys : the preparation of non-dendritic structure, reheating, thixomolding.
结果表明： 等径道角挤压后二次加热等温处理是一种适于AZ91D镁合金的制坯方法， 加热温度对坯料的组织有很大影响。
The results show that reheating the AZ91D magnesium alloy extruded by an equal channel die is a kind of good method of preparing AZ91D magnesium alloy billets.
对Y112铝合金进行半固态触变模锻实验，确定了该试验最优的半固态二次加热工艺参数。
Y112 aluminum alloy thixo-forging experiment in semi-solid state was carried out. The optimized reheating process parameters were determined in the experiment.
通过在还原期S合金化和二次造亚酸性炉渣工艺，把S的收得率提高到93％。
By S-allying and selected faint acidic slag technology during reduction period, the recovery yield of S is up to 93%.
以A356合金为对象，采用中频电磁感应器进行了二次加热工艺的研究。
The reheating process for A356 aluminum alloy was conducted with main frequency induction furnace.
大功率二次风喷涂的锌铝伪合金耐腐蚀层在盐雾试验中能够达到16 000小时长效保护。
The Zn-Al pseudo-alloy anticorrosion layer of high-power twice breezes spraying in the salt fog test can be achieved a long-term effect protection about 16 000 hours.
采用FORTRAN语言对有限元软件DEFORM - 2d进行了二次开发，实现了2519铝合金多道次热轧过程的热力-组织耦合分析。
FORTRAN language was secondarily used to develop DEFORM-2D software, a heat-force-microstructure simulation on the multi-pass hot rolling of 2519 aluminum alloy was realized.
结合实验和模拟结果，得出该合金的晶粒尺寸、一次枝晶间距、二次枝晶臂间距随冷却速率增大而明显减小。
The results show that the grain average size and the primary and secondary dendrite arm space were obviously reduced with the increase of cooling rate.
结果表明，提高冷却速率使合金二次枝晶间距及碳化物的尺寸减小。
The results indicate that both the length of secondary dendrite spacing and the size of carbides reduce with the increasing of cooling rate.
结果表明，提高冷却速率使合金二次枝晶间距及碳化物的尺寸减小。
The results indicate that both the length of secondary dendrite spacing and the size of carbides reduce with the increasing of cooling rate.
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