论文部分内容阅读
对超高压换热器用钢SAE4340进行了在空气与水介质中的疲劳裂纹扩展速率试验,得到其在两种介质中的疲劳裂纹扩展速率。试验结果表明,在水介质中的疲劳裂纹扩展速率较高。
The fatigue crack growth rate of SAE4340 steel for EHV heat exchanger was tested in air and aqueous medium, and its fatigue crack growth rate in both media was obtained. The experimental results show that the fatigue crack growth rate is higher in aqueous media.