Q460组织异常和微裂纹控制探讨_经济学_九九论文中心 关键词：组织异常 微裂纹 控制 [gap=576]Key Words：Abnormal structure;Micro cracks;Control
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Micro-cracks 微裂纹
micro-cracks damage 微裂纹损伤
micro cracks detection 微裂纹检测
micro-cracks configuration 微裂纹构形
multi-micro cracks 细观多裂纹
matrix micro-cracks 基体微裂纹
micro-cracks growth 微裂纹扩展
indoor micro-cracks 室内微裂纹
grinding micro-cracks 磨削微裂纹
Fracture of pipeline usually begins with microcracks,and it is very important to study its formation,distribution,propagation in the service life prediction of pipeline. The evolution model of stress corrosion damage of pipe is analyzed based on the damage mechanics theory.
管道的断裂损坏常常始于微裂纹,研究微裂纹的形成原因、分布情况、扩展规律、扩展速率和影响因素等对于管道的寿命预测有重要的参考价值。
参考来源 - 氢致微裂纹应力腐蚀损伤管道的寿命预测·2,447,543篇论文数据，部分数据来源于NoteExpress
The chemical grouting material has safe surface operation, and has good water plugging effect on stratums with micro cracks.
本发明地面操作安全，细微裂隙地层堵 水效果好。
Hydrogen enhanced the activity and multiplication of dislocation, so that initiation and propagation of the micro cracks were affected.
氢促进了位错的运行与增殖，从而影响裂纹的萌生与扩展。
The principles of laser generated surface acoustic waves (SAWs), the method of micro cracks detection and the applications are proposed.
介绍了激光超声表面波的产生机理、微裂纹的检测方法及其应用。
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