斜壁的平面度是靠塑性拉伸保证的。
The plasticity stretching can ensures the flatness of the sloping wall.
实验结果表明,孔洞是由于超塑性拉伸变形中品界滑动不协调而引起的。
Experimental results indicate that cavities are formed during superplastic deformation due to the inconsistency of grain boundary sliding.
本文对悬膜空间结构的一种破坏模式——膜的塑性拉伸失稳破坏进行探讨。
This paper investigates one of the failure modes of suspension membrane structures-plastic tensile collapse of the membrane.
本文分析了由于温度的波动及初始晶粒尺寸差异对超塑性拉伸过程的影响。
In this paper, the effects of the temperature fluctuation and the initial grain size inhomogeneity on the deformation process in a superplastic tensile test have been analysed.
熔覆层材料沿熔覆方向发生的塑性拉伸变形,是造成熔覆层开裂的主要原因。
Along the cladding direction, plastic tension strain appears which is the main cause of cladding layer cracking.
研究讨论缺陷对于拉伸变形的颈缩、稳定性的作用,这有利于正确理解和掌握超塑性拉伸变形过程。
So this paper will discuss the effect of defects on necking and stability of tensile deformation, which will help up to understand and master superplastic tensile deformation correctly.
在丙酮被完全蒸发掉之前,依然呈塑性的长丝被轻轻地拉伸,目的是使长分子顺直,增加固有强度。
Before all the acetone HAS evaporated, the still-plastic filament is stretched slightly to align the long molecules and develop the inherent strength.
利用扫描电镜断口分析及金相分析技术,分析了材料拉伸试件断口形貌及金相组织,初步探讨了材料的静态拉伸塑性变形机理。
The metallurgical structure and fracture morphology of the tensile specimens were investigated with SEM and metallurgical analysis, and the static tensile plastic deformation mechanism was researched.
结果显示:改性浇铸尼龙材料拉伸屈服后能够产生很大的塑性形变,不会发生脆性破坏。
The results showed that cast nylon modified with laurolactam could produce heavy plasticity deformation without brittle destruction after the tensile yielding.
在恒定载荷下,随持续拉伸时间延长或温度升高,肌腱的塑性变形明显增加。
Under constant load, the plastic deformation increased when the tendon under went a prolonged stretch or under warmer temperature.
采用弹塑性有限元方法,建立了套管接头磨损拉伸与抗内压的有限元力学模型。
By using the elastoplastic finite element method, mechanical model for wear tension and internal pressure resistance of casing joints is set up.
介绍了开发研制的黄铜薄壁小直径天线套管,并对拉伸断裂的塑性变形理论进行了分析探讨。
The thin thickness small diameter brass antenna casing is introduced and plastic deformation theory in tension fracture process is analyzed.
前轮对处于脆性温度区间的焊缝金属施加一个横向挤压塑性应变,减小甚至抵消致裂的拉伸应变,防止了焊接热裂纹的产生。
The front impact roller causes transverse plastic compression strain in the weld which is in the brittle temperature range, which counteracts the tensile strain which leads to hot cracking.
采用速率敏感晶体塑性理论,预测了面心立方金属板材单轴拉伸过程中主要理想取向的稳定性。
Orientation stability during uniaxial tension of face-centered cubic (FCC) metal sheets is predicted using a rate-sensitive crystal plasticity model.
拉伸元件可能由于塑性屈伏而破坏。
基于梯度塑性理论,考虑了应变局部化,提出单轴拉伸条件下岩样全程应力—应变曲线解析解。
Analytical solution of complete stress-strain curve of rock specimen in uniaxial tension is proposed based on gradient-dependent plasticity considering strain localization initiated at peak strength.
本文研究了单轴静拉伸条件下微孔损伤对塑性失稳的影响。
The effect of micro-damage on the plastic instability in uniaxial tensile testing has been studied in this paper.
分析了小圆角圆筒件的成形工艺性,利用成本较低、塑性较差的角料,采用一次冲压工序完成二次拉伸的复合模。
Adopting once punching process and using fewer cost and worse plasticity leftover material finish twice drawing of compound die.
另外我们观察到拉伸塑性的急剧降低。
In addition, a significant reduction of the tensile ductility of the material was observed.
通过金相、扫描电镜能谱分析和冲击、拉伸等实验方法,研究了钢中铈及其碳化物对强度、塑性、冲击韧度等力学性能的影响。
The influences of cerium and its carbide on the strength, plasticity, impact toughness and other mechanical properties of steels were investigated through experiments and tests.
在丙酮被完全蒸发掉之前,依然呈塑性的长丝被轻轻地拉伸,目的是使长分子顺直,增加固有强度。
Before all the acetone has evaporated, the still-plastic filament is stretched slightly to align the LONG. molecules and develop the inherent strength.
通过恒速拉伸试验,对一种生产保持架用铅黄铜的准超塑性进行研究。
The quasi-superplasticity of leaded brass for bearing cage was investigated through the constant velocity tensile test.
采用液压传动,本系列机床适用于塑性材料的冲裁、拉伸和压制工艺。
Adopts hydraulic drive, this series machine is suitable for the plastic material of blanking, drawing and pressing process.
“冷拉伸滚压”技术是一种新的轴类零件塑性成形的加工方式。
"Tension-Assisted cold rolling" technology is a new plastic forming method of shaft parts.
用原位合成法制备了纳米颗粒增强铝基复合材料,研究了复合材料微观组织、室温拉伸强度、塑性,并与基体合金进行比较。
Microstructure, plasticity and mechanical properties at room temperature of the nano particle reinforcement aluminum matrix composites fabricated by in situ reaction and matrix alloy were studied.
结果表明,在表面焊道下面并且离开焊缝中心线若干距离的地方,出现相当高的三向拉伸应力和大的塑性应变积累。
The results show that the triaxial residual stresses and plastic strains can accumulate to relatively high values just below the surface and at a short distance away from the weld area.
整个焊接板由弹性变形区、压缩塑性变形区、拉伸塑性变形区和熔池组成。
Whole weldment includes practically elastic deformation zone, compressive plastic deformation zone, tensile plastic deformation zone and melting pool.
研究了超高强度板条马氏体钢的平面应变断裂韧性与缺口韧性、拉伸塑性之间的关系。
The relationship between fracture toughness and notch toughness, tensile ductilities in lath martensite steel has been investigated.
实验项目有等应变率拉伸、等应力蠕变和控制应变幅的等应变率塑性循环。
The experimental items of the tests are tension of constant strain rate, creep at constant stress, and strain controlled low cycle fatigue of constant strain rate.
实验项目有等应变率拉伸、等应力蠕变和控制应变幅的等应变率塑性循环。
The experimental items of the tests are tension of constant strain rate, creep at constant stress, and strain controlled low cycle fatigue of constant strain rate.
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