Study on Fatigue Crack Growth Rate of Welded Joint of Duplex Stainless Steel
The fatigue crack growth behavior of weld metal (WM), heat affected zone(HAZ) and base metal(BM) of Duplex Stainless Steel 2205(DSS) has been determined at high-frequency fatigue testing machine. The results show that the fatigue crack growth rate of WM is slowest and the ability to resist fatigue crack growth is highest in the three parts. Secondly, the sensitivity caused by the stress change of WM is the highest, followed by HAZ, and the BM is the weakest.
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Z. L. Wang and Z. X. Wang, "Study on Fatigue Crack Growth Rate of Welded Joint of Duplex Stainless Steel", Advanced Materials Research, Vols. 291-294, pp. 941-944, 2011