AISI 316 steel has good corrosion behavior and high-temperature stability, but often prolonged exposure to temperatures close to 700 °C in aggressive environments (e.g., in boilers and furnaces, in nuclear installations) can cause problems that lead to accelerated corrosion degradation of steel components. A known solution is to prepare …
Summary. AISI 316 belongs to the austenitic stainless steel class. The addition of the alloying elements brings high corrosion resistance by the formation of a protective oxide layer on the material surface, with good ductility and thoughness. AISI 316L has lower C content, which improves the resistance to intergranular corrosion.
AISI 316L stainless steel samples were produced by means of laser powder-directed energy deposition using optimized building conditions with two different deposition strategies. The samples, in the as-built state, were at first characterized in terms of microstructure, hardness and residual stresses by the incremental hole-drilling strain …
This study presents a two-fold investigation on precision end-milling of stainless steel (AISI 316L). First, the impact of end-milling variables (cutting speed and feed rate) on the surface quality (surface roughness, microhardness, and surface morphology) was analyzed. The best surface quality with surface roughness (Ra) 0.65 ± 0.02 μm was …
3.1 Microstructural IssuesFigure 2 shows OM and SEM micrographs displaying the base metals' microstructures, namely 9Ni low-alloy steel and AISI 316L stainless steel. As seen from Fig. 2(a) and (b), 9Ni base plate microstructure comprising of a fine-grained ferritic microstructure with a small amount of retained austenite at the grain …
Fig. 3 (a and b) show the morphology and chemical composition of the duplex sample, respectively; these results indicate that the modified layer is composed of a multilayer coating and a nitrided layer. The CrN/CrTiAlSiN/WCrTiAlN multilayers coating (Fig. 3 a) consisted of a 0.3 μm CrN bottom-layer, a 1.6 μm CrTiAlSiN interlayer, and a …
SKP was applied to investigate the surface potential distribution on additively manufactured AISI 316L by DED process and compared to conventional cold worked 316L. The samples were ground till SiC P1200, rinsed in ethanol, and left 72 h at ambient air before measurements to permit the growth of the oxide layer.
Milton et al. studied the microstructure of DED AISI 316L and revealed that Cr and Ni equivalent contents lie in the range of 5–10% δ-ferrite []. Zietala et al. also investigated DED of AISI 316L and found that intercellular δ-ferrite formed at sub-grain boundaries as a].
AISI 316L es una aleación de acero inoxidable austenítico considerada una de las más duraderas del mercado en la actualidad. Además de carbono, AISI 316L (que no debe confundirse con el más común y mucho menos valioso AISI 304) contiene níquel, cromo, titanio, niobio y tántalio, elementos que le permiten mantener determinadas propiedades …
To understand the effect of surface machining on the resistance of AISI 316L to SCC (stress–corrosion cracking) in marine environments, we tested nuts surface-machined by different methods in a seawater-spraying chamber. Two forms of cracks were observed: on the machined surface and underneath it. On the surface, cracks connected …
The effect of plastic deformation applied to AISI 316L in low-temperature vacuum carburizing without surface activation was investigated. To create a difference in the deformation states of each specimen, solution and stress-relieving heat treatment were performed using plastically deformed AISI 316L, and the deformation structure and the …
AISI 316L consist mainly in the γ phase and AISI 321H in the α phase, which could be related to the preferred grains orientation or to the phase volume fraction. After the corrosion experiments, the steel samples were again …