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The fracture energy of Cu/α-AIOdiffusion-welded joints was greatly increased by the introduction of the thin film Nb interlayer whereas diffusion welding can be performed at a relatively low temperature(900℃).The increase in fracture energy of the joints
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本文主要内容就是概括地介绍了国内外关于扩散连接接头行为数值模拟的发展现状;主要包括界面孔洞消失过程、接头元素扩散与反应层的形成、接头变形与应力行为的数值模拟,以使人们能够定性或半定量的分析扩散连接因素对接头性能的影响。 |
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The fracture in studied area can he divided into diagenetic micro-facture, weathering fracture and structural fracture.
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研究区的裂缝可以划分为岩微裂隙、风化裂隙和构造裂缝3种类型。 |
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The fracture is brittle fracture, and the reason is that material of forming dies takes place the temper brittleness.
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引起脆性断裂的原因是成型模产生了回火脆性。 |
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The fracture may not be accompanied by obvious bone deformity.
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骨折也可能没有明显的骨变形。 |
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The fracture of his left leg is very serious.
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他的左腿骨折情况很严重。 |
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The fracture of stuffing box was caused by fatigue, which resulted from the maximum stress concentration on the centripetal border of the oil hole.
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结果表明:材料成分和显微组织均符合要求;裂纹起源于输油孔的侧壁;填料盘的失效模式为疲劳失效,内压在填料盘内部输油孔上产生的应力集中导致了填料盘的疲劳失效。 |
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The fracture reasons of forming dies, which cracked during forming process of cranks, were analyzed by means of chemical composition analysis, metallographic examination and fracture analysis in this paper.
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摘要采用化学成分分析、金相检验和断口分析等方法,对开裂的成型模进行了分析。 |
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The fracture surface of the wires studied by scanning electron microscopy (SEM) shows a suitable interfacial bonding between the fiber and aluminum.
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复合丝拉伸断口的扫描电镜(SEM)观察可见断面有一定起伏,部分纤维拔出但长度较短,表明纤维与基体具有适当的界面结合。 |
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The fracture toughness values of vermicular graphite cast iron specimen subjected to four different heat treatment methods were tested and compared.
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摘要比较四种热处理方法下蠕墨铸铁试样的断裂韧度。 |
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The fractured leg must be kept in plaster.
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必须把骨折的腿打上石膏。 |
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The fractured structure of the touch maps in the cerebellum supported the idea that the region was somehow comparing the sensory data coming from the multiple body parts used by each animal to explore its world.
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小脑触觉图谱的不连续构造,支持以下的想法:大鼠用各处体表探索周遭环境,会得到各式各样的感觉讯息,而小脑内的不连续区域会设法比较这些讯息。 |