The R-curve and thermal shock resistance properties are improved and the transformation effect are strengthened by the surface compressive stress effect.
表面压应力作用强化了相变增韧效果，改善了材料的表面抗裂纹性能和抗热震稳定性等力学性能。
These larger ions take up more room and are pressed together when the glass cools, producing a layer of compressive stress on the surface of the glass.
这些钾离子占据更大的空间，当玻璃冷却下来的时候，钾离子便挤压在一起，从而在玻璃表面生产一层压应力层。
Meantime, the compressive stress in inner surface of hollow roller by nitrocarburizing is available for improvement of bend fatigue property.
同时，共渗在空心滚子内表面造成的压应力对改善弯曲疲劳性能有利。
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.
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；
Thus, under the same bolt tension, reduce narrow smooth surface after the compressive stress will increase.
这样，在螺栓张力相同的情况下，缩小后的窄光滑面的压紧应力就会增大。
It is also found that the value of tensile strength and surface residual compressive stress is linear correlation.
抗拉强度与表面残余压应力线性相关。
Compressive residual stress fields in the surface region of small specimens are determined.
测定了小试样表面层的残余压应力场。
When tempered glass suffers rapid cooling of a certain extent, the internal tensile stress and compressive stress on the surface can offset due to opposite stress direction.
钢化玻璃受一定的急冷温度时，其表面的压应力与张应力方向相反，相互抵消。
This kind of nanostructured surface layer with compressive stress could significantly increase the fatigue strength of butt welded joint.
这种压应力纳米强化层可以明显地提高对接接头的疲劳性能。
Objective: To study the effects of elastic modulus change of dental implants on the compressive stress in the surface of the jaw of dogs.
目的：通过在体电阻应变测量法探讨种植体弹性模量的变化对颌骨表面压应变值的影响。
The existence of the compressive stress in the surface layer is the main reason for the strengthening of ceramics.
表层压应力的存在是瓷体增强的一个主要原因。
Compressive tectonic stress is the main stress in foreland basins in western China, where surface and subsurface structures are very complicated.
中国西部前陆盆地主要以挤压构造应力为主，地表与地下构造异常复杂。
Compared with the polished specimens, the surface residual stress of the post-exposed specimens was also compressive, but much lower.
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。
The results show that the stress in ceramic layer is mainly for lateral compressive one, and its maximal stress occurs in the place that is at the distance of 1/3 thickness from coating surface;
结果表明，陶瓷层内的残余应力主要表现为横向压缩应力，且最大值位于距陶瓷层表面1/3厚度处；
The results show that the stress in ceramic layer is mainly for lateral compressive one, and its maximal stress occurs in the place that is at the distance of 1/3 thickness from coating surface;
结果表明，陶瓷层内的残余应力主要表现为横向压缩应力，且最大值位于距陶瓷层表面1/3厚度处；
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