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; 开放科学(资源服务)标识码(OSID) 文章编号:1672-7207(2020)11-2999-08 Net-shape forming and densification mechanism of MIM418 turbine wheel using master alloy method CHEN Xiaowei1, LIU..., Xiangtan University, Xiangtan 411100, China) Abstract: Using master alloy powder and carbonyl Ni powder as raw materials, MIM418 superalloy was prepared through master alloy approach, and near-net shape......
and Technology, Luoyang 471003, China) Abstract: The grain refinement effect and fading behaviors of titanium added to commercial pure aluminum by electrolysis and by Al-Ti and Al-Ti-B master alloy, and added to electrolytic low-titanium aluminum alloys by Al-B master alloy were investigated through comparing experiment. The experiment results show that when titanium content is 0.10% or 0.15......
been used to simulate the mould filling of an automobile master brake cylinder with the semi-solid A356 alumi-num alloy slurry. The simulation results are in agreement with the practical filling...Numerical simulation on reho-diecasting mould filling of an automobile master brake cylinderYue-long Bai1,2),Wei-min Mao1),Hong Xu3),Jun Xu2) 1) School of Materials Science and Engineering,University......
Al-P中间合金变质+半连续铸造技术制备过共晶Al-17Si合金铸锭梁博1,张志峰1,陈春生1,徐骏1(1.北京市北京有色金属研究总院国家有色金属复合材料工程技术研究中心)摘 要:采用Al-P中间合金变质+半连续铸造技术制备了初生硅细小且分布均匀的过共晶Al-17Si合金铸锭.结果表明,Al-P中间合金变质剂主要作用是改变合金中初生硅的形貌,使其由板片状转变为近球状,细化初生硅.使用Al-P中间合金操作简单,变质效果好且稳定,使用该中间合金无渣,无污染,提高合金的实收率.从时间上看可以完全省去变质处理过程,节约......
, China) Abstract: The effects of Mg-9Sr master alloys with different states on the as-cast microstructure of AZ31 magnesium alloy were investigated. The results show that adding Mg-9Sr master alloys... of Mg-9Sr master alloy with rolled state is the best, followed by the solutionized, conventional as-cast and rapid-solidified Mg-9Sr master alloys, respectively. After treated with the rolled Mg-9Sr......
Trans. Nonferrous Met. Soc. China 25(2015) 1804-1810 Grain refining effect of Mg by novel particle cluster-containing Al-Ti-C master alloy Xiao-teng LIU, Hai HAO, Xiao-xu ZHU, Xing-guo ZHANG School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China Received 8 July 2014; accepted 25 March 2015 Abstract: A novel Al-Ti-C master alloy containing Al4C3 and TiC......
: In order to increase the modifying effect, the Cu-P master alloy was rapidly solidified with melt-spin method, and the nano-sized ribbon was gained at 105-106 ℃/s. Subsequently, ZL109 alloy was modified by nanocrystal and massive Cu-P master alloy, respectively, with molten metal casting method. The results show that the microscopic structure of ZL109 alloy modified by nanocrystal Cu-P master......
基于Master CAM的数控代码转换系统开发及应用何培英,樊宁,师展郑州轻工业学院机电工程学院摘 要:MasterCAM内部虽然带有许多后置处理程序,但并不能直接应用于一些在我国使用比较普遍的数控系统.针对这一状况,在分析了Master CAM后置处理程序特点的基础上,构思系统的开发流程,利用VB 6.0程序开发环境进行相应的界面设计和程序开发,开发出了一个小型软件系统,可使Master CAM生成的后置处理程序直接转换为多种数控系统所需的NC代码,从而满足不同数控系统的需求.并以实际应用验证系统运行的实用性和可靠性,以及操作的简便性.关键词:Master CAM;数控代码;后置程序;转换系统;......
中心,而共晶反应机制是Al-B中间合金具有晶粒细化作用的主要原因. 关键词:Al-B中间合金；晶粒细化；共晶反应 中图分类号:TG 146.2 文献标识码:A Grain refining mechanism of Al-B master alloy on Al alloys WANG Fang, WANG..., Zhengzhou 450052, China) Abstract:Through investigating the grain refinement effect of Al-B master alloy on pure Al, Al-0.5%Si, Al-1%Si, Al-1.5%Mg and Al-4%Cu alloys, the grain refinement mechanism......
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