Microstructure generation in titanium alloys by laser remelting in nitrogen environment

Boguslaw Major; Reinhold Ebner; Andrzej Klimpel; Grzegorz Kruzel

doi:10.1117/12.520714

6 October 2003 Microstructure generation in titanium alloys by laser remelting in nitrogen environment

Boguslaw Major, Reinhold Ebner, Andrzej Klimpel, Grzegorz Kruzel

Proceedings Volume 5229, Laser Technology VII: Applications of Lasers; (2003) https://doi.org/10.1117/12.520714
Event: Laser Technology VII: Applications of Lasers, 2002, Szczecin, Poland

Abstract

Laser remelting of titanium alloys by overlapping laser tracks using Nd:YAG or diode laser in nitrogen environment led to the formation of the TiN dominant phase. Residual stress measurements in the TiN phase fabricated in surface layers at tehse conditions revealed the tensile stresses in the range of +500 to +800MPa for overlapping laser tracks produced by Nd:YAG laser and compression ones -33 to -550MPa in the case of the diode laser remelting in one track. Coatings of titanium-nickel produced by remelting of the formerly electro-deposited nickel layer in nitrogen environment were also examined in respect to the formed phases at rapid solidification. Mechanism of TiN formation in surface layers by laser remelting was under discussion.

Citation Download Citation

Boguslaw Major, Reinhold Ebner, Andrzej Klimpel, and Grzegorz Kruzel "Microstructure generation in titanium alloys by laser remelting in nitrogen environment", Proc. SPIE 5229, Laser Technology VII: Applications of Lasers, (6 October 2003); https://doi.org/10.1117/12.520714

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