peened

The microhardness increased by at least 81% directly at the surface for the traditional peened sample at 0.15 mmA peening intensity.

在0.15mmA喷丸强度下，复合材料表面显微硬度提高了81%以上。

In order to study the effect on the properties of laser peened brass, a brass sample is processed with Nd ∶ YAG lasers and its hardness, residual stress, roughness and texture are examined and analyzed.

为了研究激光冲击强化对黄铜材料性能的影响，利用Nd∶YAG激光器对试样进行冲击强化处理，对其表面硬度、表面形貌、粗糙度和残余应力进行了实验测试和分析对比。

A half-analytical expression of stress concentration coefficents due to surface roughness was proposed, and a prediction method of fatigue limits of peened specimens with surface fatigue sources was suggested.

提出了表面粗糙度引起的应力集中系数的半解析表达式以及疲劳源在表面时疲劳极限的预测方法。

Microstructural effect on fatigue crack initiation for shot peened copper and brass

纯铜和黄铜喷丸强化的组织效应

Residual stress field and stress relaxation in shot peened Inconel 718

Inconel718合金喷丸残余应力场及应力松弛的研究

The results show that the fatigue life of the peened joint is 20~ 30 times as long as the as-welded joints. Therefore, the improvement of the fatigue strength of welded joints by ultrasonic peening is remarkable.

试验结果表明：超声冲击方法对焊接接头疲劳强度的改善效果十分明显，能够提高疲劳寿命20～30倍以上，极具实用价值。

As the pit forms, it damages the shot-peened layer locally at the surface.

斑点形成后, 它会损伤局部表面的喷丸层.

Study on the Fatigue Crack Inclusion of the Carburized and Shot& peened Gear Steel

对渗碳和抛丸强化齿轮钢疲劳裂纹夹杂物的研究

In various surface processing craft, the surface peened is a valid technique.

在各种表面处理工艺中，表面喷丸被认为是一个有效的手段。

BRAD: A thin, wire nail; sometimes peened on one end.

曲头钉：一种细金属钉；有时候一端是平头的。

The results show that the nanograined microstructure with the average grain size of obout 20 nm is obtained in the surface layer of this steel by high-energy peening process. The phase constitute is not changed. The hardness of the peened sample is increased by about 21.5%.

实验表明，含氮中锰奥氏体耐磨钢经高能喷丸处理后，可获得平均晶粒尺寸约为20nm的纳米晶组织表面层，表层相组成没有变化，喷丸后硬度提高了约21.5%。

Hardness distributions for shot peened specimen show a softened layer in the subsurface.

喷丸试样的硬度分布曲线表明，在表下一定深度存在软化区，而裂纹萌生的位置比软化区更深。

Yield Strength of Shot Peened Surface of a Metallic Material in Hard State

硬状态材料喷丸表面的屈服强度

Precipitation of γ″ Phase and Residual Stress Relaxation in Shot Peened Inconel 718

Inconel718合金喷丸层γ〃相的析出及应力松弛

Torque prestrain may induce damage or cracks which decrease the reverse torsion fatigue limit of shot peened specimen.

在喷丸前或后进行预应变均使疲劳极限下降。这和预应变时造成的损伤或在夹杂周围造成裂纹有关，它使疲劳寿命降低。

Removing or damaging the shot-peened layer can reduce the protection that this compressive layer provides against fatigue and stress corrosion crack initiation.

喷丸压缩层的改变或损坏会降低压缩层抵抗疲劳和应力腐蚀裂纹的保护性。