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Analysis of the fatigue behavior of a Zinc-Nickel alloy coating as a substitution of electrodeposited cadmium for AISI 4140 steel

Grant number: 17/05619-0
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): June 01, 2017
Effective date (End): March 31, 2018
Field of knowledge:Engineering - Materials and Metallurgical Engineering
Principal Investigator:Herman Jacobus Cornelis Voorwald
Grantee:Martin Ferreira Fernandes
Host Institution: Faculdade de Engenharia (FEG). Universidade Estadual Paulista (UNESP). Campus de Guaratinguetá. Guaratinguetá , SP, Brazil

Abstract

In the Brazilian petrochemical industry, studs are used to join together flanges or equipment connectors in marine environments, where fluctuations of the tensile stress at the studs occur due to the variation of the pressure in the oil well or due to the ocean waves movement. In order to protect the studs that are subjected to corrosive environments, coatings are used as protection, therefore, frequently the studs undergo an electrodeposition process of cadmium. However, it is widely known that this coating offers a great impact on the environment and a health risk. The feasibility of the electrodeposition of zinc-nickel coating as a substitution to the cadmium for AISI 4140 steel will be studied at this work. The fatigue behavior comparison will be made of the S-N curves of AISI 4140 steel in axial fatigue at room temperature. The Weibull distribution will be applied to perform the statistical analysis of the fatigue behavior. The optical microscopy and scanning electron microscopy will be used to perform the analysis of the microstructure and fracture surface, respectively.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FERREIRA FERNANDES, MARTIN; DOS SANTOS, JEFFERSON RODRIGO MARCELINO; DE OLIVEIRA VELLOSO, VERONICA MARA; VOORWALD, HERMAN JACOBUS CORNELIS. AISI 4140 Steel Fatigue Performance: Cd Replacement by Electroplated Zn-Ni Alloy Coating. Journal of Materials Engineering and Performance, v. 29, n. 3, SI, . (17/05619-0, 19/02125-1)
MARCELINO DOS SANTOS, JEFFERSON RODRIGO; FERNANDES, MARTIN FERREIRA; VELLOSO, VERONICA MARA DE OLIVEIRA; VOORWALD, HERMAN JACOBUS CORNELIS. Fatigue Analysis of Threaded Components with Cd and Zn-Ni Anticorrosive Coatings. METALS, v. 11, n. 9, . (17/05619-0, 19/02125-1)
FERREIRA FERNANDES, MARTIN; DOS SANTOS, JEFFERSON RODRIGO MARCELINO; DE OLIVEIRA VELLOSO, VERONICA MARA; VOORWALD, HERMAN JACOBUS CORNELIS. AISI 4140 Steel Fatigue Performance: Cd Replacement by Electroplated Zn-Ni Alloy Coating. Journal of Materials Engineering and Performance, v. 29, n. 3, p. 12-pg., . (17/05619-0, 19/02125-1)

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