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The Electrodeposition of Fe-Ni-Cr Alloys from Aqueous Electrolytes

EverhartC, Charles
http://rave.ohiolink.edu/etdc/view?acc_num=case1252092401

Abstract Details

2009, Master of Sciences (Engineering), Case Western Reserve University, Chemical Engineering.
Electrodeposition of 70 % wt Fe, 10% wt Ni, and 20% wt Cr alloys corresponding to stainless steel 316 compositions have been carried out on stainless steel 416 substrates using a separated cell with a rotating disk electrode (RDE) and glycine as the complexing agent for Cr3+. Such a deposit, after carburization, could be used as an inexpensive substitute to parts entirely fabricated from costly stainless steel 316. Pulse plating cycling between cathodic current densities of -170 mA/cm2 and -20 mA/cm2 for 2 sec and 58 sec, respectively, in an aqueous electrolyte at pH=1 and 250 rpm, produced alloy of the desired composition range. Total plating time was typically 1 hour yielding a deposit of about 5 μm thickness. These deposits have few, hair-line cracks or exhibit no cracking at all. The effect of several variables on the alloy composition, texture, and adhesion were explored. The variables include current density and its waveform, temperature, total plating time, electrolyte aging, concentrations of complexing agents, additives, and Fe2+. Significant deterioration of the electrolyte with aging time and usage was noted, leading to variations and irreproducibility of the deposit samples. The plating bath produces acceptable deposits only when aged ≤ 2 days and used for ≤ 3 hours.
Uziel Landau, PhD (Committee Chair)
Arthur Heuer, PhD (Committee Co-Chair)
Heidi Martin, PhD (Committee Member)
112 p.
Chemical Engineering; Chemistry; Materials Science
electrodeposition; Fe-Ni-Cr alloy; stainless steel 316; protective coatings

Recommended Citations

Citations

  • EverhartC, C. (2009). The Electrodeposition of Fe-Ni-Cr Alloys from Aqueous Electrolytes [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1252092401

    APA Style (7th edition)

  • EverhartC, Charles. The Electrodeposition of Fe-Ni-Cr Alloys from Aqueous Electrolytes. 2009. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1252092401.

    MLA Style (8th edition)

  • EverhartC, Charles. "The Electrodeposition of Fe-Ni-Cr Alloys from Aqueous Electrolytes." Master's thesis, Case Western Reserve University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1252092401

    Chicago Manual of Style (17th edition)

case1252092401
696
© 2009, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.