TY - JOUR
T1 - 3d printing of stainless steel 316L and its weldability for corrosive environments
AU - Sampath, Venkata Krishnan
AU - Silori, Praveen
AU - Paradkar, Parth
AU - Niauzorau, Stanislau
AU - Sharstniou, Aliaksandr
AU - Hasib, Amm
AU - Villalobos, Samuel
AU - Azeredo, Bruno
N1 - Funding Information:
The authors acknowledge Arizona State University’ John M. Cowley Center for High Resolution Electron Microscopy, Eyring Materials Center and the Manufacturing Research and Innovation Hub for use of their share-user facilities and funding from the Salt-River Project. Additionally, authors express their gratitude to (i) Dr. Dhruv Bhate and Paul Paradise for their assistance with mechanical testing, (ii) Nicholas Peterson for his contributions to designing the welding set-up and welding process, and (iii) Cameron Noe, Scott Almen and Rhett Sweeney for their assistance with 3D Printing, polishing and machining of specimens.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/1/26
Y1 - 2022/1/26
N2 - Critical to its successful deployment, metal 3D printed parts must demonstrate not only corrosion resistance to operate in harsh environments but also good weldability to existing assets for installation and long-term durability. To address this issue, this paper evaluates the corrosion resistance of additively manufactured Stainless Steel (SS) 316 L via Laser powder bed fusion (L-PBF) and its weldability to its wrought counterpart under corrosion distress. First, 3D printed pellets are separately characterized by accelerated corrosion testing (i.e. chronoamperometry, cyclic potentiodynamic polarization and electrochemical impedance spectroscopy) following ASTM standards, and its improved corrosion resistance is demonstrated and compared to its wrought counterpart. Next, to evaluate the weldability, 3D printed SS 316 L plates are welded to wrought counterparts, dissimilar welded joints dog-bone specimens are machined from it and submitted for uniaxial mechanical tensile testing. When compared against similar welded joints wrought dog-bone specimens (i.e. wrought on both halves), dissimilar welded joints dog-bone specimens exhibit 36.02% less ducility and 12.59% lower yield strength, and those values reduce to 74.65% and 27.29%, respectively, when the former undergoes accelerated corrosion. These results evaluate 3D printed SS 316 L parts against wrought for applications as replacement parts in harsh environments that require welding for installation.
AB - Critical to its successful deployment, metal 3D printed parts must demonstrate not only corrosion resistance to operate in harsh environments but also good weldability to existing assets for installation and long-term durability. To address this issue, this paper evaluates the corrosion resistance of additively manufactured Stainless Steel (SS) 316 L via Laser powder bed fusion (L-PBF) and its weldability to its wrought counterpart under corrosion distress. First, 3D printed pellets are separately characterized by accelerated corrosion testing (i.e. chronoamperometry, cyclic potentiodynamic polarization and electrochemical impedance spectroscopy) following ASTM standards, and its improved corrosion resistance is demonstrated and compared to its wrought counterpart. Next, to evaluate the weldability, 3D printed SS 316 L plates are welded to wrought counterparts, dissimilar welded joints dog-bone specimens are machined from it and submitted for uniaxial mechanical tensile testing. When compared against similar welded joints wrought dog-bone specimens (i.e. wrought on both halves), dissimilar welded joints dog-bone specimens exhibit 36.02% less ducility and 12.59% lower yield strength, and those values reduce to 74.65% and 27.29%, respectively, when the former undergoes accelerated corrosion. These results evaluate 3D printed SS 316 L parts against wrought for applications as replacement parts in harsh environments that require welding for installation.
KW - Corrosion resistance
KW - Harsh environments
KW - Metal additive manufacturing
KW - Weldability
UR - http://www.scopus.com/inward/record.url?scp=85121965617&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85121965617&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2021.142439
DO - 10.1016/j.msea.2021.142439
M3 - Article
AN - SCOPUS:85121965617
SN - 0921-5093
VL - 833
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
M1 - 142439
ER -