Effect of welding process on microstructure of stainless steels

Paslanmaz çelikler; içerisinde en az ağırlıkça % 12 oranında krom (Cr) içeren demir esaslı alaşımlar olarak tanımlanırlar. Olması gereken bu minimum krom seviyesi malzeme yüzeyinde kromca zengin koruyucu oksit tabakasının oluşumunu sağlar. Kaynak sonrası malzemenin paslanmazlık özelliğinin sürdürülebilmesi bu krom oksit tabakasının korunmasına bağlıdır. Bu çalışmada kaynak işleminin paslanmaz çeliğin mikroyapısı üzerindeki etkileri açıklanmıştır.

Paslanmaz çeliklerde kaynak işleminin mikroyapıya etkileri

The stainless properties of stainless steels are primarily due to the presence of chromium (Cr) in quantities greater than roughly 12 weight percent. This level of chromium is the minimum level of chromium to ensure a continuous stable layer of protective chromium-rich oxide forms on the surface. The ability to form chromium oxide in the weld region must be maintained to ensure stainless properties of the weld region after welding. In this study the effect welding process on the microstructural properties of the stainless steels were established.

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