论文部分内容阅读
1.前言使用焊接结构而引起的破坏中,作为环境脆化的应力腐蚀裂纹,它和蠕变、疲劳等破坏形式不同。其寿命难以予测,是一种在意想不到的环境条件下,所产生的很伤脑筋的破坏。另外,这种损伤,对于焊接结构来说,也常是一种致命的破坏。因此,在可能发生应力腐蚀裂纹的环境条件下使用焊接结构时,有必要创建一套尽可能防止这种裂纹发生的对策。
1. INTRODUCTION Among the damage caused by the use of welded structures, as stress corrosion cracking of environmental embrittlement, it is different from the forms of damage such as creep, fatigue and the like. Its life expectancy is difficult to predict, and it is a very sabotage damage that occurs in unexpected environmental conditions. In addition, this damage, for the welded structure, is often a fatal damage. Therefore, it is necessary to create a set of measures to prevent the occurrence of such cracks as possible when using the welded structure in an environment where stress corrosion cracking may occur.