采用高能喷丸方法使工业纯钛疲劳试样的表层实现纳米化，并进行了疲劳试验。
Fatigue test was carried out for commercial pure titanium that have nano-crystallized in surface by high-energy shot peening.
该方法使分散性很大的疲劳试验结果得以合理处置，从而可准确地提供试验数据，供作材料疲劳鉴定与疲劳寿命估算之用。
This method can make the fatigue test result with great dispersion be processed reasonably, so as to provide correct test data for appraisal of material fatigue and estimation of fatigue life.
疲劳损伤曾使铁路桥梁失效，疲劳裂缝的存在使海洋钻井台倒塌倾覆，酿成悲剧。
Fatigue damage once invalidated railway bridge, fatigue crack ever resulted in collapse of artesian well desk in ocean.
铝合金经喷丸强化处理后，可将常规疲劳强度提高，并使材料的疲劳性能不受微动作用的影响。
After shot peening, the regular fatigue strength of aluminium alloy can be increased and the effect of micromotion on fatigue performance of ther material can be avoided.
冷凝器铜管的工作环境使疲劳极限大为降低，加剧了疲劳裂纹的扩展。
The fatigue limit of condenser copper tube was reduced by working condition which aggravated the spread of crack.
使疲劳因身体或精神费力而疲劳；
使疲劳因身体或精神费力而疲劳；
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