S32205 Dubleks Paslanmaz Çeliğin TIG Kaynağında Soğuma Hızının Mikroyapısal Özelliklere Etkileri

Year 2015, Volume: 7 Issue: 4, 28 - 36, 15.12.2015

Aziz Barış Başyiğit , Adem Kurt

https://doi.org/10.29137/umagd.379795

Cited By: 1

Abstract

Dubleks paslanmaz çeliklerin kaynağı artan uygulama alanlarından dolayı
belirgin şekilde ilgi kaynağı olmaktadır. Bu çeliklerin kaynaklı
bağlantılarında oluşabilecek delta-ferrit, östenit ve diğer önemli
metaller-arası fazların uygun olmayan dağılımları ile ilgili problemler önem
kazanmaktadır. Kaynak işlemlerinde tatminkar korozyon ve mekanik özellikleri
elde edebilmek için optimum delta ferrit oranları hacimce yaklaşık olarak
%35-60 aralığında olması gerekmektedir.

Bu çalışmada 3 mm kalınlığındaki 2205 dubleks paslanmaz çelik numuneler saf
argon koruyucu gazı kullanılarak TIG kaynak yöntemi ile birleştirilmiştir.
Farklı kaynak soğuma koşullarının mikroyapısal değişikliklere etkileri
incelenmiştir.

 

Keywords

Dubleks Paslanmaz Çelikler, TİG Kaynağı, Soğuma Hızı Etkileri

S32205 Dubleks Paslanmaz Çeliğin TIG Kaynağında Soğuma Hızının Mikroyapısal Özelliklere Etkileri

Abstract

Welding of duplex
stainless steels gains interest, significantly due to their increasing
application fields. The problems come into question about the weldments of
these steels improper distribution of important phases like delta-ferrite,
austenite and other intermetallics. In order to maintain sufficient corrosion
and mechanical properties in welding, the optimum delta-ferrite phase ratios
must be kept within approximately %35-65 by volume.

In this study; thicknesses
of 3mm S32205 (2205) duplex stainless steel plates were TIG welded by pure
argon shielding gas. The effects of various welding cooling circumstances on
microstructural developments were examined.

 

Keywords

Duplex Stainless Steels, TIG Welding, Cooling Rate Effects

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