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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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高、低强度钢疲劳短裂纹扩展特性
, PP. 211-216
Abstract:
本文研究了5C钢和两种不同强度的40CrNiMo钢长、短裂纹近门槛区域的疲劳裂纹扩展性能。并测定了它们的闭合效应和断面粗糙度,结果表明长、短裂纹的扩展速率和门槛值差别与钢强度有关,5C钢短裂纹的门槛值只是长裂纹的一半。长、短裂纹疲劳特性的差别可用闭合效应来解释。
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