A5004144798- Welding Techniques and Residual Stresses
- Hydrogen embrittlement and corrosion behaviors in metals
- Metal and Thin Film Mechanics
- Corrosion Behavior and Inhibition
- Microstructure and Mechanical Properties of Steels
Fudan University
2018-2023
Purpose The purpose of this study is to investigate the intergranular corrosion (IGC) susceptibility a nitrogen-containing austenitic stainless steel QN2109. QN2109 was investigated. Design/methodology/approach double-loop electrochemical potentiodynamic reactivation (DL-EPR) tests were carried out. Scanning electron microscopy and atomic force used characterize microstructure. Findings optimized test condition for 1 M H 2 SO 4 + 0.01 NH SCN at 40°C. nose temperature...
After laser welding, the corrosion resistance and microstructure of a newly developed austenitic stainless steel, QN2109, were investigated. A negligible heat-affected zone was found segregation Cr, Mo, Mn, Ni, N revealed by EPMA. In contrast to previously reported findings, δ-ferrite obtained here lower than that austenite in acidic solutions SKPFM MFM, owing segregation. The pitting whole welds base metal (BM), whereas fusion higher BM, significant decrease number inclusions.
After laser welding, the corrosion resistance and microstructure of a newly developed austenitic stainless steel, QN2109, were investigated. A negligible heat-affected zone was found segregation Cr, Mo, Mn, Ni, N revealed by EPMA. In contrast to previously reported findings, δ-ferrite obtained here lower than that austenite in acidic solutions SKPFM MFM, owing segregation. The pitting whole welds base metal (BM), whereas fusion higher BM, significant decrease number inclusions.