在球磨機設備運yun轉zhuan中zhong，引yin起qi接jie觸chu疲pi勞lao的de應ying力li分fen布bu很hen不bu均jun勻yun

，主zhu要yao集ji中zhong在zai表biao麵mian層ceng及ji其qi附fu近jin，破po壞huai機ji理li比bi較jiao複fu雜za。早zao期qi認ren為wei

，疲pi勞lao裂lie紋wen較jiao早zao產chan生sheng於yu球qiu磨mo機ji零ling件jian表biao麵mian較jiao大da剪jian切qie應ying力li處chu，繼ji而er擴kuo展zhan到dao表biao麵mian，從cong而er產chan生sheng疲pi勞lao剝bo落luo，因yin此ci被bei稱cheng為wei較jiao大da靜jing態tai切qie應ying力li理li論lun。後hou來lai
，朗lang德de貝bei格ge和he伯bo母mu格ge林lin提ti出chu較jiao大da動dong態tai切qie應ying力li理li論lun，認ren為wei是shi由you於yu球qiu磨mo機ji接jie觸chu麵mian以yi不bu平ping行xing於yu滾gun動dong方fang向xiang的de較jiao大da交jiao變bian切qie應ying力li導dao致zhi疲pi勞lao裂lie紋wen的de產chan生sheng，進jin一yi步bu擴kuo展zhan到dao表biao麵mian，產chan生sheng解jie除chu疲pi勞lao剝bo落luo。
        隨著冶金質量的改善和檢測技術的進步，研究發現
，球磨機shangdeliewenbujincongbiaomianyixiachansheng，erqieyecongbiaomianshangchansheng，zaixiangshencengkuozhan。yunyongduanlielixuefangfayanjiujiechupilaoshiyigezhongyaodefazhanfangxiang，bazhouchenggangzhongdetanhuawuhefeijinshujiazawuquexiandangzuozhouchenggangzhongdejicunliewen，shidangqianyanjiuqiumojizhouchengjiechupilaodejiaoxinguandian。yingliyoudaoyinqideyingbianyinghua、相變、蝴蝶狀的形成、沿yan蝴hu蝶die邊bian緣yuan或huo碳tan化hua物wu和he夾jia雜za物wu缺que陷xian的de相xiang界jie麵mian產chan生sheng裂lie紋wen
，以yi及ji裂lie紋wen隨sui後hou擴kuo展zhan導dao致zhi的de球qiu磨mo機ji疲pi勞lao剝bo落luo，是shi迄qi今jin對dui疲pi勞lao剝bo落luo比bi較jiao全quan麵mian的de認ren識shi

，也ye可ke以yi說shuo是shi接jie觸chu疲pi勞lao破po壞huai的de機ji理li。
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