残余压应力作用在塑性变形层内。
测定了小试样表面层的残余压应力场。
Compressive residual stress fields in the surface region of small specimens are determined.
抗拉强度与表面残余压应力线性相关。
It is also found that the value of tensile strength and surface residual compressive stress is linear correlation.
滚压后再喷丸显著降低工件的表面残余压应力。
The surface residual stresses of the rolled workpieces can be reduced remarkably by shot peening.
但其最大残余压应力值及应力影响深度有所降低。
But its maximum compressive residual stress and influencing depth reduces.
结果表明：晶须径向及轴向均受残余压应力的作用；
The effects of the residual stresses on the toughening behavior of this composite was also studied.
喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
Compressive residual stress are the main factor in the increase of torsion fatigue limit.
残余压应力使缺口处裂纹闭合力增大甚至可出现非扩展裂纹。
Compressive residual stress increases the crack closure effect at the notch and may lead to a non-propagating crack.
残余压应力使缺口处裂纹闭合力增大甚至可出现非扩展裂纹。
Compressive residual stress increases the crack closure effect at the notch and may lead to a non-pr...
结果表明，激光相变硬化层中的残余压应力是普遍存在的现象。
The experimental results show that the residual compressive stresses existed in the laser hardened case are universal phenomena.
疲劳裂纹在残余压应力场中的扩展可借助于裂纹闭合力来描述。
Fatigue crack propagation in a compressive residual stress field can be characterized with the closure effect.
试验表明，化学热处理后残余压应力的深度往往与渗层深度相一致。
Test shows that the depth of residual compressive after chemical heat treatment is correspondent with that of diffusion layer.
测试发现热暴露在一定程度上降低了原抛光试样表面的残余压应力水平。
Compared with the polished specimens, the surface residual stress of the post-exposed specimens was also compressive, but much lower.
并对残余压应力和残余奥氏体可以提高接触疲劳寿命的原因提出了新的解释。
A new explanation of reason why the rolling contact fatigue life can be prolonged by residual compressive stress and retained austenite was advanced.
基体受残余拉应力，颗粒受残余压应力，在结合界面处存在最大残余拉应力。
There are tensile stress on the matrix, compress stress on the particle and maximal stress near the interface.
文中从过载引起残余压应力、位错屏蔽效应和过载损伤等方面进行了分析与讨论。
These observations were explained in terms of residual compression stress, dislocation shielding and damage caused by overloading.
分析表明，高幅值的残余压应力和“有效晶粒”细化是提高弯曲疲劳性能的主要因素。
The results of the analyses show that high residual compressive stress and fine scattered martensite units are the main cause of improving fatigue properties.
与干磨相比，湿磨硬化层表面残余压应力有所提高，但其硬化层深度减少了约30%。
Compared with the dry-grinding, the surface compress residual stresses of the hardened layer under wet-grinding is increased, but its depth of hardened layer reduces about 30%.
力学模型分析表明，基体残余压应力以抵抗基体拉伸变形的方式提高了铬层的断裂韧性；
The analysis of mechanical model shows that the fracture toughness is improved by residual compressive stress of substrate surface, which resists the tensile deformation of substrate.
过载效应是裂尖钝化、裂尖附近残余压应力和裂尖尾部塑性诱导闭合等共同作用的结果。
The overload effects were controlled by various factors such as crack blunting, residual compressive stress ahead of the crack tip and crack closure induced by wake zone plasticity.
本文提出了最佳残余应力的计算方法；并设计了一种产生残余压应力的试验装置和工艺方法。
The particle provides the best calculating method of residual stress, as well as designs a kind of testing device and technological method to produce residual, stress.
航空轴承外圈的疲劳裂纹分析表明，套圈表面的残余压应力分布致使轴承表面接触疲劳寿命降低。
The analysis on fatigue cracks of the outer race of aero-bearing shows that the distribution of residual tensile stress on race surface could reduce its contact fatigue life.
结果表明，冷扩张过程所引入的切向残余压应力能保持足够的强度，以对钢轨螺栓孔起到显著的防裂和止裂作用。
It is concluded that, the residual stress induced by cold expansion can maintain enough strength to prevent and retard fatigue crack initiation and growth in rail bolt hole.
由于失去与原有相邻材料的约束作用，小试块切割的边缘处残余应力减小，甚至由残余压应力转变为残余拉应力。
Owing to the loss of their adjacent material constraint, the residual stress on the cutting edge of the small test block reduces, even changing from compressive stress to tensile stress.
微观分析表明，表层硬相化合物的形成及晶粒细化是材料表面耐磨性提高的主要原因，残余压应力的增加也表明抗疲劳性得到提高。
The microanalysis results reveal that some new hard phases are formed and some crystalline grains are refined in the surface layers. All these are the main factors to improve...
本文介绍了大型燃油锅炉经拼板焊接和冷旋压加工制造而成的平管板封头残余应力试验。
This article introduced the experiment of residual stress in flat tubeplate head of large scale fuel boiler that was manufactured by cold rotary extruding and butt weld.
筒形件强旋时，由于不均匀的塑性变形，在旋压件内产生残余应力。
Because of the nonuniform plastic deformation, residual stresses occur in spun parts.
残余应力的大小及其分布规律对旋压件的使用性能有重要的影响。
The magnitude and distribution of residual stresses have an important influence on used property of spun parts.
研究表明：框梁结构航空模锻件淬火残余应力主要集中于腹板与筋板交汇处，呈现外压内拉的分布特点；
The results show that the residual stresses of the forging are mainly concentrated on the interface of the rib and web with the characteristics of external compressive and inner tensile.
研究表明：框梁结构航空模锻件淬火残余应力主要集中于腹板与筋板交汇处，呈现外压内拉的分布特点；
The results show that the residual stresses of the forging are mainly concentrated on the interface of the rib and web with the characteristics of external compressive and inner tensile.
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