Effect of Zn-Ni Coating on Corrosion and Corrosion Fatigue Behavior of AISI 4140 steel

Atasoy S., Yılmaz H., Sadeler R., Yurdgülü H. İ.

16 INTERNATIONAL CORROSION SYMPOSIUM, Karaman, Türkiye, 24 - 25 Mayıs 2024, ss.80-91

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Karaman
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.80-91
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this study, the effect of Zinc-Nickel alloy coating on the corrosion and corrosion fatigue behavior of AISI 4140

steel was investigated. An electrolyte composed of a 5% aqueous solution of NaCl was utilized. Tafel method was

used to compare the corrosion properties of the materials. Fatigue tests were performed on a four-point loaded

(R=-1) bending test machine at room temperature. Corrosion fatigue tests were performed with a "corrosion cell

system" integrated into the fatigue machine. The corrosive environment reduced the fatigue life of AISI 4140 steel.

The applied coating increased the corrosion fatigue resistance of the base material by an average of 7%. In the

experiments conducted in air environment, the application of Zn-Ni coating reduced the fatigue strength and

fatigue limit up to 9%.