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Study of Heat Treating on Twin-roll Rapid Solidification AZ91 Magnesium Alloy Ribbons;

双辊快淬AZ91镁合金带材的热处理工艺研究

In the present study, the AZ91 magnesium alloy strip chip is prepared by twin-roll rapid solidification technique, it is find that the mi.

本研究利用雾化技术将液流破碎成细小液滴,用双辊熔体旋铸法制备了AZ91镁合金薄带碎片,其微观组织细小,平均显微硬度比铸态的有很大提高。

The development and the characterization of twin-roll thin strip continuous casting are reviewed.

综述了双辊薄带连铸技术的发展历史和特点,详细介绍了双辊薄带连铸技术在国内的发展状况,分析了该技术发展过程存在的几个主要问题及今后的发展方向。

The macroscopic heating, transmiting solute model and the microscopic model of solidification microstructure forming on twin roll thin strip casting process have been developed by using stream line interface, and the coupling between macroscopic and microscopic aspects has been carried out by solid fraction and macro micro time step.

以流线为边界划分网格 ,建立了双辊薄带凝固过程的宏观传热模型、溶质传输模型和凝固组织形成的微观模型 ,并以固相分数为媒介 ,采用宏观和微观两个不同的时间步长 ,实现了宏观模型与微观模型的耦合 ,模拟结果与实际情况吻合较

As a new sort of near net shape continuous casting technology, twin roll continuous casting technology is widely attended by domestic and overseas researchers in recent years.

双辊连铸技术是一种新型近终形连铸技术 ,近年来受到普遍关注。

But for twin roll casting alloy,the microstructure changed from dendrite to fibrous deformation structure after several passes hot rolling at 350℃.

轧制后两种合金均具有良好的力学性能,双辊铸轧合金的强度和延伸率均明显高于传统铸造合金的强度和延伸率,两种合金1 mm厚薄带经350℃/10 min均匀化退火后的抗拉强度、屈服强度和延伸率分别为334。

In order to improve the forming property of twin roll casting magnesium alloy sheets AZ31B, homogenizing treatment was carried out at different annealing temperature (300,350,400℃) and the holding time (1,2,3 h).

为提高双辊铸轧AZ31B镁合金薄板的成形性能,在不同退火温度(300、350、400℃)和保温时间(1、2、3h)下对铸轧AZ31B镁合金薄板进行均匀化退火试验。

The influence of heating temperature in annealing treatment on morphology of eutectic carbide in twin roll casting strip of high speed steel was studied.

研究了退火加热温度对高速钢双辊铸轧薄带中共晶碳化物形态的影响·试验结果表明 ,随着加热温度的提高 ,铸轧薄带中的网状共晶碳化物陆续熔断 ,粒状碳化物逐渐增多·当加热温度达到 95 0℃后 ,铸轧薄带中的网状共晶碳化物基本上被粒状碳化物所取代·用汤普森 弗瑞锥其 (Thompson Friedrich)方程 ,对试验结果进行了分析 ,并得出共晶碳化物层片间距的减小为高速钢铸轧薄带中的共晶碳化物的熔断和球化提供了条件

Microstructure of Twin-roll Casting Magnesium Alloy Strip;

双辊铸轧镁合金板坯微观组织特征

The study of new technology on producing wrought magnesium alloy thin strip by twin-roll casting;

双辊铸轧法生产变形镁合金薄带新工艺的研究

On the conditions that a foundation of rotational coordinate system was set up with a virtual system introduced in,a discriminant is derived for the position of the welding point of solidification layers in the process of twin-roll casting,i.

在建立旋转坐标系和引进虚拟系统条件下,根据傅立叶传热微分方程,建立了双辊铸轧过程中凝固层焊合点位置的判别式K=d-4asη2ω-1arcsin(H/R)+s20+s0,由该式能够推断出凝固层焊合点的位置,即当K=0时,凝固层焊合点位于辊缝之间;当K>0时,凝固层焊合点位于辊缝之上;当K<0时,凝固层焊合点位于辊缝之下。

A sort of rare earth Mg-based system hydrogen storage alloys with AB3-type was prepared by double-roller rapid quenching method.

用双辊快淬法制备的AB3型稀土镁基贮氢合金,经X射线衍射和SEM分析表明,该贮氢合金具有纳米晶结构,由LaNi3相和LaNi5相组成。

The nanocrystalline AB_5 type rich-lanthanum rare earth hydrogen storage alloys were prepared by double-roller rapid quenching.

用双辊快淬工艺制备了纳米晶 AB_5型富镧稀土贮氢合金。