晶界滑移,grain boundary sliding
1)grain boundary sliding晶界滑移
1.As the grain sizes are decreased,the transition of deformation mechanism from partial dislocation emission from grain boundaries and twinning tograin boundary sliding and grain rotation in face-centered-cubic nano-crystalline metals is summarized.综述了纳米面心立方金属的变形机制随晶粒尺寸的减小而发生的变化,即变形机制由晶界处发射不全位错、形成孪晶转变为晶界滑移、晶粒转动。
2.The following grain size effects are analyzed; on the contributions of various mechanisms including diffusion creep,grain boundary sliding and dislocation creep to the total strain, and on thegrain boundary sliding which is a dominant mechanism in superplastic deformation.分析了晶粒尺寸在各种机制中对总变形的影响;晶粒尺寸不同时材料变形的微观特征;晶粒尺寸对晶界滑移速率的影响。
3.For the latter,there are two different types,attributed to liquid phase at grain boundary andgrain boundary sliding respectively.后者依材料流动形式不同又分为由液相引起和由晶界滑移引起的超塑性。
2)grain boundary sliding晶界滑动
1.It"s obtained that main mechanism of superplastics isgrain boundary sliding.据此得出超塑性变形的主要机制是晶界滑动、孔洞和位错运动松弛晶界引起应力集中，协调了晶界滑动的连续进行。
2.Microstructural observations suggest thatgrain boundary sliding (GBS) makes a substantial contribution to the superplastic deformation, and the.显微组织观察和断口分析表明 ,工业态AZ31镁合金超塑变形主要由晶界滑动机制所控制 ,同时 ,动态再结晶也是合金超塑变形的一种协同机制。
3.Its main mechanism of superplasticity deformation isgrain boundary sliding,and the main r.Ti3Al金属间化合物超塑变形的主要机制是晶界滑动,失效的主要原因是空洞的形成和连接。
3)grain boundary slip晶界滑动
1.Contrary to be crack sources and make mechanical properties of alloys deteriorate as it has been always considered, η phase was found to have little effect on room temperature properties and furthermore, it improved the high temperature ductility of the alloy via blocking thegrain boundary slip due to it.通过对一种Fe-Ni-Cr合金进行过时效后晶界上析出η相的研究发现,由于晶界η相与合金基体保持共格关系,η相对合金的室温性能影响不大;并且在高温变形条件下η相形成凸起,阻碍晶界滑动,减小在晶角处的应力集中,从而提高合金的高温塑性。
4)crystal slip晶体滑移
1.Under the framework ofcrystal slip theory,a θ model that can describe the anisotropic creep of Ni-base single crystal(SC) alloy was built by the θ mapping method to the crystal directional problem of Ni-base single crystal turbine bladecreep.针对镍基单晶涡轮叶片蠕变的晶体方向性问题,运用θ映射法,在晶体滑移理论框架下,建立了能够描述镍基单晶合金各向异性蠕变的θ模型。
英文短句/例句
1.THE GLIDE OF ALUMINIUM SINGLE CRYSTALS OBSERVED BY ELECTRON MICROSCOPE [Ⅱ]铝单晶体滑移的电子显微镜颧察(二)
2.Study of Mechanical Behavior and Application of Single Crystal Superalloy Base on Finite Deformation Crystallographic Theory;基于有限变形晶体滑移理论的单晶力学行为及应用研究
3.An APPlication of the {110} Slip-system Pyramid in BCC Crystals to Determining Independent Slip-systems体心立方晶体{110}滑移系棱锥在确定独立滑移系时的应用
4.CHARACTERISTICS OF GLIDE CAUSED BY THE SCRATCHES ON ALUMINIUM SINGLE CRYSTALS在铝晶体表面上刻纹所导致的滑移的特征
5.Evolution of Persistent Slip Bands in Fatigued Copper Single Crystals Under Intermediate Temperature Recovery中温回复下疲劳Cu单晶体驻留滑移带的演变
6.Effect of slip and twinning systems on the polycrystal plastic model for magnesium alloy基于滑移/孪生耦合模型的镁合金多晶体塑性成形分析
7.high electron mobility transistor高电子迁移率晶体管
8.carrier drift transistor载流子漂移型晶体管
9.To smooth the surface of a wafer or semiconductor crystal.使晶片或半导体晶体的表面光滑的过程。
10.GRAIN BOUNDARY MIGRATION IN RECRYSTALLIZED ARMCO IRON DURING GRAIN GROWTHα-铁素体晶粒长大过程中的晶界迁移
11.The crystals represent talc that is used to to dilute the injected drug.晶体代表滑石，滑石用来稀释注射的药物。
12.In the hexagonal close packed structure, slip systems are more limited.在六方密排晶格中，滑移系受到较多的限制。
13.Dislocation structures in fatigued Cu single crystals with a special single-slip orientation一个特殊单滑移取向铜单晶疲劳位错结构研究
14.Bifurcation analysis of kink bands of bi-slippage crystal metamorphic rock under plane strain双滑移系单晶岩石平面应变扭折带分叉分析
15.Clinical Study on Revolving Sliding Transplanting Intraocular Lenses旋转滑入法植入人工晶体临床研究
16.CPPD-CDD crystals were discovered in the joint fluid of the part cases.部分病例滑液中可查到焦磷酸钙晶体。
17.Meso-deformation and Constitutive Relations of Sliding Polycrystals;多晶滑错体的细观变形过程与本构关系
18.The formation of twin structure depends on the slip of stacking fault for nucleating and extending.孪晶结构的形成依靠堆垛层错的滑移运动而形核和扩展.
相关短句/例句
grain boundary sliding晶界滑动
1.It"s obtained that main mechanism of superplastics isgrain boundary sliding.据此得出超塑性变形的主要机制是晶界滑动、孔洞和位错运动松弛晶界引起应力集中，协调了晶界滑动的连续进行。
2.Microstructural observations suggest thatgrain boundary sliding (GBS) makes a substantial contribution to the superplastic deformation, and the.显微组织观察和断口分析表明 ,工业态AZ31镁合金超塑变形主要由晶界滑动机制所控制 ,同时 ,动态再结晶也是合金超塑变形的一种协同机制。
3.Its main mechanism of superplasticity deformation isgrain boundary sliding,and the main r.Ti3Al金属间化合物超塑变形的主要机制是晶界滑动,失效的主要原因是空洞的形成和连接。
3)grain boundary slip晶界滑动
1.Contrary to be crack sources and make mechanical properties of alloys deteriorate as it has been always considered, η phase was found to have little effect on room temperature properties and furthermore, it improved the high temperature ductility of the alloy via blocking thegrain boundary slip due to it.通过对一种Fe-Ni-Cr合金进行过时效后晶界上析出η相的研究发现,由于晶界η相与合金基体保持共格关系,η相对合金的室温性能影响不大;并且在高温变形条件下η相形成凸起,阻碍晶界滑动,减小在晶角处的应力集中,从而提高合金的高温塑性。
4)crystal slip晶体滑移
1.Under the framework ofcrystal slip theory,a θ model that can describe the anisotropic creep of Ni-base single crystal(SC) alloy was built by the θ mapping method to the crystal directional problem of Ni-base single crystal turbine bladecreep.针对镍基单晶涡轮叶片蠕变的晶体方向性问题,运用θ映射法,在晶体滑移理论框架下,建立了能够描述镍基单晶合金各向异性蠕变的θ模型。
5)crystalline slip晶面滑移
1.It can be predicated that localcrystalline slip systems are responsible for the formation of the kink band.在变形初期，因局部晶面滑移而形成与纤维轴约呈６０～６５°角的变形带。
6)intercrystalline slip晶间滑移
延伸阅读
晶界滑移晶界滑移slip at grain boundaries晶界滑移slip atgrain botindaries相邻两晶粒在外加应力作用下沿着晶界产生的滑动。图1是晶界滑移的示意。19W.罗森汉和J.C.W.汉弗莱就图1在外加切应力作用下的晶界滑移在钢的高温形变过程中观察到晶界滑移。1947年葛庭健在高纯多晶金属铝中发现一个内耗峰(在单晶中没有)，并提出其来源是由于晶粒沿晶界作粘滞性滑移所引起的应力弛豫。这一内耗峰称为葛峰。晶界滑移葛峰的发现是支持薄晶界层理论的最早的实验证明，也推动了晶界滑移的研究。近期的研究表明，葛峰与多晶金属的晶粒度有关。晶界滑移可以用划痕方法进行直接测量。B.查默斯首先发现晶界滑移与晶界的类型和取向差有关。随后的实验进一步证实晶界滑移与晶界结构有关。图2给出金属锌以〔101印为转轴的倾侧晶界的晶界滑移量与倾侧角及温度的关系。由图2可见晶界滑移与倾侧角有关。小角晶界和某些重合晶格晶界(例如艺9(56.6。))对晶界滑移阻力很大。由图还可看出，晶界滑移与温度有关，温度越高，晶界滑移量越大。因此，晶界滑移对材料的高温力学性能丫如蠕变等)产生很大影响:了l心)1弓))倾侧艺9 f 56。615花奋p=1 96kPa亡二3屺l，1分{663K623K卦︸S翻俘犯汉)573K0占20 40印 倾侧角6(度)8《)图2锌晶界滑移与倾侧角和温度的关系 (吴希俊)
