Sn对轧制Mg-8Li合金组织、性能及织构的影响

来源 :特种粉末冶金及复合材料制备/加工第一届学术会议 | 被引量 : 0次 | 上传用户:TDM
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
利用Ar气保护的真空感应熔炼炉制备出合金材料,并在498K条件下进行累积压下量为90%大变形轧制试验.借助OM,万能试验机及X射线衍射仪对轧制的Mg-8Li-1Sn及Mg-8Li-3Sn合金进行了的组织、性能及织构进行了研究.发现通过轧制可以细化合金的组织,同时使合金中析出的第二相更好的弥散分布于合金组织中,Sn的加入可以很好的提高合金的力学性能,Mg-8Li-1Sn及Mg8Li-3Sn合金通过轧制后板材的抗拉强度分别达到了141.35MPa和181.59MPa,同时合金的断后延伸率达到26.1%和22.8%.合金的中α相织构类型为(0002)基面织构,α相织构较弱,为(110)晶面织构,整体织构强度均较弱.
其他文献
本实验在自制的AAO模板上通过直流电沉积方法制备了直径较小的Fe-Co-Dy纳米线和Sm-Co/Fe-Co-Dy双相纳米线阵列.用X射线衍射仪(XRD),扫描电子显微镜(SEM),透射电子显微镜(TEM)和振动样品磁强计(VSM)表征了纳米线的晶体结构和磁性质.XRD分析表明Dy元素的加入,在纳米线中产生了新的Fe-Dy相.磁滞回线中显示外磁场平行于纳米线方向为纳米线的易磁化方向,因此纳米线具有明
The AgCuO electrical contact material was prepared by reaction synthesis method and heat treatment technology.The deformation behavior of CuO particles and its effect on the properties of AgCuO electr
本文采用溶胶-凝胶与直流电化学沉积相结合的方法制备了Fe7Co3-BaTiO3芯-管复合多铁材料,并研究了BaTiO3纳米管的形成机理、AAO模板在不同温度退火时的变化,以及磁电耦合效应对FeTCo3-BaTiO3芯-管纳米线的磁性能的影响.研究表明,根据正负电荷相互吸引,带正电的BaTi03溶胶颗粒吸附在Al2O3管壁上带负电荷部位,经750℃退火后可形成BaTiO3纳米管.AAO模板在750℃
The oxidation of Co-10Cr-xAl (x=0, 5, 10, nominal composition, at.%) alloys in 0.1Mpa pure O2 at 973K were investigated.The oxidation resistance of Co-10Cr-xAl improved greatly when the content of Al
Magnetically controlled damping in 30vol%Ni-Mn-Ga/polymer composite was investigated.The orientation magnetic field did not affect the phase temperatures of Ni-Mn-Ga/ epoxy resin(EP)composites but res
Titanium alloy possesses excellent comprehensive properties and it has been widely used in various fields.Due to its small thermal conductivity, low specific heat and active chemical property features
Mg-8Li-Sn合金在真空感应熔炼炉中熔炼,经过300℃X8h均匀化处理后在变形温度为200℃-300℃,变形速率为0.001s-1-is-1条件下用Gleeble-3500热模拟仪做热压缩实验,研究其应力、应变、温度之间的关系,计算热激活能,并建立本材料的本构关系以及构建热加工图.结果表明材料的峰值流变应力随着变形温度的增加而降低,随着变形速率的增加而增加.材料的热激活能=110.802KJ/
SiC nanowires were prepared via low pressure chemical vapor infiltration (LPCVI) technique in the sintered porous SiC ceramics.The average diameter of SiC nanowires changed from 200 to 1000nm when var
The SiBCN ceramics with amorphous microstructure were introduced to porous Si3N4 ceramics at 800oC via Low-pressure chemical vapor deposition and infiltration(LPCVD/CVI), and then the composite cerami
Bulk Fe75Nb3Si13B9 amorphous and nanocrystalline alloy with 10mm in diameter and 6mm in height was fabricated by mechanical alloying and spark plasma sintering technology.The phase composition, glass