Corrosion performance of additively manufactured stainless steel parts: A review

A Critical Review on Effect of Process Parameters on Mechanical and Microstructural Properties of Powder-Bed Fusion Additive Manufacturing of SS316L

“…Shiom et al [93] reported that re-scanning effectively reduces residual stress by 55%, and preheating the base plate can reduce residual stresses by about 40%. Further, residual stress on other surface characteristics, such as corrosion behavior [49], wear rate, and microstructure evolution reported some controversy. Additionally, there are some new types of approaches in the measurement of residual stress of AM part suggested by Kluczy ński et al [94,95], which significantly affect the fatigue properties of AM-made 316L steel [96][97][98], which was shown in the co-authors' own work.…”

“…Whenever these oxide layers are deformed, the surface starts to react with the environment and eventually degrades. This behavior is called passivity, and the oxide layers are called a passive layer [49]. The stability of the oxide layer in human body fluid is the most essential to prevent corrosion.…”

“…The stability of the oxide layer in human body fluid is the most essential to prevent corrosion. Several types of corrosion failure were observed for bio implants: pitting corrosion, fatigue corrosion, stress corrosion, and inter-granular corrosion [49]. Corrosion is the most affecting factor in implant failure; however, wear and fretting, surface cracks, and porosity also contribute to the failure of a bio implant.…”

“…The various fluids developed in laboratory to simulate the same behavior are called simulated body fluids, such as Ringer's solution, Hank's solution, phosphate buffer saline (PBS), human serum and other physiological simulated body fluids [50]. The general corrosion behavior of a material is evaluated with a standard testing procedure (according to ASTM F2129 or ASTM G 61) called potentiodynamic polarization [49,[51][52][53][54]. Many researchers compared the corrosion behavior of SS316L with AM and wrought alloy in simulated body fluids.…”

The Effect of a Slow Strain Rate on the Stress Corrosion Resistance of Austenitic Stainless Steel Produced by the Wire Laser Additive Manufacturing Process

“…In this case, there was no evidence of significant temperature gradients within the bulk of the alloy during solidification that could create the formation of a separate ferritic phase as in the case of the WLAM alloy. With regard to the inherent defects, it was evident that the samples produced by WLAM included typical AM microstructural imperfections in the form of porosity and a lack of fusion, which could have a detrimental effect on the mechanical properties and corrosion resistance [48,49].…”