TIG welding of 22-05 duplex stainless steels (Uranus 45N and Avesta). Microstructural studies and mechanical properties

J M Gómez de Salazar Dpto de Ciencia de los Materiales e Ingenieria Metalúrgica, Fac de Ciencias Químicas, University Complutense de Madrid,

A Ureña Dpto de Ciencia de los Materiales e Ingenieria Metalúrgica, Fac de Ciencias Químicas, University Complutense de Madrid,

M Cobollo Dpto de Ciencia de los Materiales e Ingenieria Metalúrgica, Fac de Ciencias Químicas, University Complutense de Madrid,

V Barranco Dpto de Ciencia de los Materiales e Ingenieria Metalúrgica, Fac de Ciencias Químicas, University Complutense de Madrid,

M J Alvarez Dpto de Ciencia de los Materiales e Ingenieria Metalúrgica, Fac de Ciencias Químicas, University Complutense de Madrid,

Summary

TIG welding of two different duplex stainless steels is studied. An arc was discharged on base metal plates using the TIG technique without filler material and with varying energy conditions (ENA). A comparative study was made of both microstructural evolution and mechanical properties. The relationship between hardness profiles, microstructural variations and the δ-ferrite concentration is established. In addition, the above properties are related to the ENA for each welded joint.

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TIG welding of 22-05 duplex stainless steels (Uranus 45N and Avesta). Microstructural studies and mechanical properties

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TIG welding of 22-05 duplex stainless steels (Uranus 45N and Avesta). Microstructural studies and mechanical properties

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