grain boundary

The grain boundary segregation becomes more severe when the cooling speed is increased.

同时,随着冷却速率加大,晶界偏析变得更为显著.

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Chemical interaction between grain boundary chemistry and cold brittleness temperature.

建立了晶界化学和冷脆性温度之间的关系。

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It is found that the pre eutectoid ferrite is retarded by addition of B element and the segregation of P and S on the grain boundary is restrained.

研究中发现，在连铸过程中，硼添加到钢中，显著推迟了先共析铁素体的析出，抑制了P，S等元素在晶界的偏聚。

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This paper explains the role of metallic materials grain boundary in high temperature oxidation behaviour of pure metals and alloys in brief.

扼要阐述了金属材料晶界在纯金属与合金高温氧化中的作用。

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A grain-boundary defect barrier model of SnO 2· Co 2 O 3· Sb 2 O 3 varistor was also introduced.

提出了SnO2·Co2O3·Sb2O3的晶界缺陷势垒模型.

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The improvement of YTS is attributed to the grain refinement strengthening of Y and Zn, and to the solid solution strengthening of Zn. The reduction of UTS and elongation are caused by the precipitation of a compound phase along the grain boundary.

Y、Zn元素的细晶强化及Zn元素的固溶强化是屈服强度提高的主要原因；抗拉强度和延伸率的降低是由于化合物相沿晶界析出。

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AlN precipitation at the full austenite grain boundary would worsen the ductility of the steels.

在奥氏体单相区,由于氮化铝的析出导致钢种的塑性恶化.

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But at 1150℃ and 1250℃, clear grain boundary formed.

在1150℃和1250℃下, 却形成了清晰的富铋晶界.

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The grain sizes of all samples are smaller ( 14.2~ 29.6nm), which is propitious to lowering the noise of grain boundary.

样品的晶粒尺寸较小（14.2~29.6nm），有利于降低磁记录材料的晶界噪音。

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Domain Morphology and Piezoelectric Properties of Si-doped PMS-PZT Piezoelectric Ceramics Affected by Grain Boundary Action

硅掺杂PMS-PZT材料的晶界行为对畴结构和压电性能的影响

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But it is brittle at room temperature because of its big grains and carbide network in the grain boundary coming from its slow cool-speed.

但是由于冷速较低，结果晶粒粗大，晶界形成了粗大的碳化物网络，使得它在室温下为脆性，其延伸率几乎为零，机加工性能极差。

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Most rocks in the crust contain stress-aligned fluid-saturated grain-boundary cracks and pores 1126.

地壳中大部分岩石包含着应力 — 排列的流体 — 渗透的晶粒间界裂纹和孔隙126.

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By analogizing to the grain boundary defects model for ZnO varistors, a Schottky potential barriers model for TiO2 based ceramics for varistors is introduced.

类比ZnO压敏材料的晶界势垒模型，提出了适合TiO2压敏材料的肖特基势垒模型。

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Misorientation dependence of grain boundary energy: an atomistic study

晶界能与晶粒取向差关系的原子模拟

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The formation of grain boundary step when machining poly-crystal is also examined.

还探讨了加工多晶材料时晶界台阶的形成.

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And the precipitation phases in the grain boundary of LF 6 and 2024 alloys deteriorate their corrosion-resistance.

而LF6和2024合金由于在晶界处有析出相形成而降低了它们的耐蚀性.

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Multiplicity of grain boundary structures, an atomistic study

晶界结构多重性的原子模拟

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It was proposed that the formation of grain boundary barriers can be attributed to the oxygen absorption during the cooling process, which was supported by AES profile analysis.

我们认为晶界势垒起源于降温过程中的氧吸附，并且此观点得到了AES深度分析的支持。

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The superplastic behavior is to grain boundary sliding accommodated by dislocation motion assisted by lattice diffusion.

合金的超塑性变形机制为晶格扩散控制的位错协调晶界滑动机制.

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Simulating of depth analysis of atomprobe along vertical direction to grain boundary

模拟原子探针垂直于晶界方向上的深度分析

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Grain boundary non-equilibrium segregation phenomenon has been found in many alloy systems.

溶质晶界 非平衡 偏聚现象已在大量合金系中发现.

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The first chapter aims at revealing various meso-deformation characteristics, such as crystalline slip and grain boundary slide, which are recorded under scaning electronic microscope for high purity aluminum tensile specimen at room temperature.

论文中第一章通过对高纯多晶铝室温拉伸的刻线扫描电镜动态观察，获得了包括晶粒内部滑移、晶界滑错等丰富翔实的多晶体细观变形特征。

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The carbides in the matrix prevent dislocation from moving, and pin effect of the carbides in the grain boundary keep grain boundary from sliding, and creep resistance of steel is improved.

蠕变期间，晶内碳化物阻碍位错运动，晶界碳化物“钉扎”晶界，阻碍晶界滑动，由此提高钢的蠕变抗力。

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The elevation of the recrystallization temperature could mainly attributed to the Sc.6. The recrystallization mechanism of Al-Mg and Al-Mg-Sc alloy include nucleation of grain boundary remotion and combination-grow up of subgrain.

稳定化退火过程中，铝镁及铝镁钪合金的再结晶机制有晶界弓出形核及亚晶合并长大。

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A brief summary of segregation. especially nonequilibrium of interface& grain boundary, is presented in this paper, and the relationship between segregation of intergranular boundary and the cold brittleness is also introduced.

简要介绍了偏聚特别是晶界非平衡偏聚研究的历史和现状.并扼要介绍了品界非平衡偏聚与材料冷脆之间的关系。

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Effect of Mg Segregation on Grain Boundary Binding Force and Fracture Stress in High-Strength Aluminium Alloy

高强铝合金Mg偏析对晶界结合力和断裂应力的影响

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The fracture surface indicates that the mechanism of the superplastic deformation in AZ91 alloy is controlled by the grain boundary sliding accompanied with cavities interlinking.

大晶粒AZ91合金的超塑性变形机制是晶界滑移控制下的孔洞连接协调机制。

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HREM image processing of grain boundary phases in Incoloy 907

INCOLOY907合金晶界相的高分辨图像处理

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The stable eutectic carbides with complex morphologyprevent coalescence of grain boundary voids and therefore prolong tertiary creep stage and rupture time.

在晶界上形成形态复杂稳定的碳化物能阻止空洞的连接，从而延长了蠕变第三阶段，增加了断裂时间。

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By adjusting temperature, grain precipitation is limited by nucleation energy and only grain boundary precipitation exists.

通过调整温度, 颗粒沉淀受核化能量控制,就只有晶界沉淀存在.

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