Implications of solution treatment on cavitation erosion and corrosion resistances and synergism of austenitic stainless steel

Design of High-Entropy Alloy Coating for Cavitation Erosion Resistance by Different Energy-Induced Dynamic Cyclic Behaviors

“…Numerous previous studies have shown that cavitation load can cause fatigue cracking and severe CE damage of high-strength metal materials with body-centered cubic (BCC) structure, such as ferritic stainless steel and manganese–nickel–aluminum bronze. , Therefore, blindly improving the strength and hardness of materials is not able to well inhibit the CE damage. Although the low stacking fault energy (SFE) metal materials with face-centered cubic (FCC) as the main phase can absorb mechanical impact energy by producing dislocations and other defects, − if their hardness is too low (such as copper and brass), the cavitation load is very easy to cause grain boundary cracking. , Even if their hardness is moderate (such as austenitic stainless steel and aluminum bronze), when these defect structures are accumulated to a certain extent, they will still cause hard embrittlement of the material surface and eventually lead to heavy damage. , More seriously, some recent studies have shown that cavitation heat significantly heats and oxidizes the material surface, resulting in melting craters, rainbow rings, and other characteristic structures . Some scholars even speculated that the cavitation heat could heat the material surface to at least 600 °C based on the formation temperature of cobalt and chromium oxides on the CE surface .…”

“…16,17 Even if their hardness is moderate (such as austenitic stainless steel and aluminum bronze), when these defect structures are accumulated to a certain extent, they will still cause hard embrittlement of the material surface and eventually lead to heavy damage. 18,19 More seriously, some recent studies have shown that cavitation heat significantly heats and oxidizes the material surface, resulting in melting craters, rainbow rings, and other characteristic structures. 20 Some scholars even speculated that the cavitation heat could heat the material surface to at least 600 °C based on the formation temperature of cobalt and chromium oxides on the CE surface.…”

An overwiew on corrosion behavior of steels in factory

“…The reason of this is acidification of diffusion feed water and formation of bacterial originated acid during the course of diffusion [1]. Lo et al investigated the influences of solution treatment on the cavitation erosion and corrosion resistances of a CrMnNi austenitic stainless steel and determined that solution heat treatment degraded the corrosion and cavitation resistance of samples [2]. In the other study Cash et al worked the low carbon steel.…”

Nitriding of Nimonic 80 A alloy for improving cavitation erosion resistance

“…In order to improve the resistance to various forms of wear, including cavitation erosion, research efforts are focused on the application of volume or surface heat treatments, as well as techniques for physical surface modification (local remelting, welding loading, CVD deposits or PVD, mechanical laser beam hardening, etc.) [6][7][8][9].…”