Effects of surface finishes, heat treatments and printing orientations on stress corrosion cracking behavior of laser powder bed fusion 316L stainless steel in high-temperature water

被引:4
|
作者
Que, Zaiqing [1 ]
Riipinen, Tuomas [2 ]
Ferreiros, Pedro [1 ]
Goel, Sneha [1 ]
Sipila, Konsta [1 ]
Saario, Timo [1 ]
Ikalainen, Tiina [1 ]
Toivonen, Aki [1 ]
Revuelta, Alejandro [2 ]
机构
[1] VTT Tech Res Ctr Finland, Adv Mat Nucl Energy, Kivimiehentie 3, Espoo 02150, Finland
[2] VTT Tech Res Ctr Finland, Adv Mfg Technol, Kemistintie 3, Espoo 02150, Finland
关键词
Laser powder bed fusion; Stress corrosion cracking; Surface treatment; Stainless steel; High-temperature water; Heat treatment; MECHANICAL-PROPERTIES; PROCESS PARAMETERS; GROWTH BEHAVIOR; MICROSTRUCTURE; ENHANCEMENT; RESISTANCE;
D O I
10.1016/j.corsci.2024.112118
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Stress corrosion cracking (SCC) of laser powder bed fusion 316 L stainless steel in oxygenated high-temperature water environments with chloride addition at 288 degrees C was studied. The influences of surface finishes (as-built, mechanically polished, Hirtisation (R) and shot peened), heat treatments (solution annealing at 1066 and 1150 degrees C and hot isostatic pressing) and the printing orientations on SCC were evaluated. Hirtisation resulted in a lower SCC susceptibility than as-built or polished surface while shot peening showed the lowest apparent SCC resistance. A high annealing temperature decreases SCC resistance. The effect of printing orientation is material and environment dependent.
引用
收藏
页数:16
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