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Effect of Nickel Coating on Fatigue Resistance of Carburized AISI 301 Stainless Steel

تأثیر الطلاء بالنیكل على مقاومة الكلال للفولاذ الغیر قابل للصدأ AISI 301 المكربن

Moayad Abdullah Mohammad --- Jamal Nayief Sultan --- Suhaila Younis Hussain --- George Matti Hanosh

Engineering and Technology Journal مجلة الهندسة والتكنولوجيا
ISSN: 16816900 24120758 Year: 2014 Volume: 32 Issue: 1 Part (A) Engineering Pages: 13-23
Publisher: University of Technology الجامعة التكنولوجية

Abstract

The present research deals with the study of the effect of Nickel Coating on the fatigue resistance of carburized and uncarburized AISI 301 stainless steel. Six groups of bending fatigue specimens were prepared for fatigue test.Two groups of the carburized specimens were precoated with Nickel. The Nickel coated specimens were then case carburized at a temperature of (540°C) for 90 minute. The other Nickel coated specimens were then case carburized at a temperature of (950°C) for 120 minute.Experimental results revealed an increase in fatigue resistance by (25%) for Nickel coated specimens which are carburized at low temperature of (540°C) as compared with the as received specimens.The surface hardness was increased by 79.4% for those specimens that have been carburized at a temperature of (540°C), while the specimens that have been coated by Nickel then carburized at low temperature of (540°C) showed a 34.3% increase in surface hardness.

Keywords

AISI 301Stainless Steel --- Low temperature carburization --- High temperature carburization --- Nickel coating --- Fatigue resistance.