Influencia del recubrimiento Zn-Ni en la resistencia del acero 300M estimada mediante Small Punch Testing
- I. Miguel 1
- E. Mardaras 1
- A. Salicio 2
- M. Lekka 2
- G. Artola 1
- C. Angulo 3
- 1 AZTERLAN, Basque Research and Technology Alliance (BRTA), Durango, Spain
- 2 CIDETEC, Basque Research and Technology Alliance (BRTA), Donostia-San Sebastián, Spain
- 3 Universidad del País Vasco (UPV/EHU), Departamento de Ingeniería Mecánica, Bilbao, Spain
ISSN: 2792-4246
Datum der Publikation: 2023
Nummer: 6
Seiten: 15-20
Art: Artikel
Andere Publikationen in: Revista española de mecánica de la fractura
Zusammenfassung
The elimination of Cd coatings by regulation raises the need to use alternative coatings such as Zn-Ni. The electroplating conditions of these materials cause hydrogen absorption phenomena in high-strength steels and, consequently, risk of embrittlement of the base steel. The use of rotating electrodes for the study of coating conditions limits the possibility of using conventional mechanical test for the evaluation of embrittlement. This paper presents the simultaneous study of hydrogen uptake and associated embrittlement during Zn-Ni coating on 300M steel, using rotary electrode discs directly as a small punch testing specimen. The results indicate that most of the hydrogen incorporated into the samples is found in the coating and that the estimation of tensile strength from the results of small punch testing from the results of Small Punch Testing is the parameter most affected by the presence of hydrogen.