Microstructure and microhardness of Ti6Al4V alloy treated by GTAW SiC alloying

• Autorzy: Bochnowski W.
• Języki publikacji: EN

Abstrakty

EN

In this work, the change of the structure and microhardness of Ti6Al4V titanium alloy after remelting and remelting with SiC alloing by electric arc welding (GTAW method) was studied. The current intensity equal 100 A and fixed scan speed rate equal 0,2 m/min has been used to remelting surface of the alloy. Change of structure were investigated by optical and scanning electron microscopy. Microhardness test showed, that the remelting of the surface does not change the hardness of the alloy. Treated by GTAW SiC alloying leads to the formation of hard (570 HV0,1) surface layer with a thickness of 2 mm. The resulting surface layer is characterized by diverse morphology alloyed zone. The fracture of alloy after conventional heat treatment, similarly to fracture after remelting with GTAW is characterized by extremely fine dimples of plastic deformation. In the alloyed specimens the intergranular and crystalline fracture was identified.

Słowa kluczowe

EN

titanium alloy; arc plasma treatment; alloying; structure; fracture; microhardness

PL

stop tytanu; obróbka plazmowa; stopowanie; mikrotwardość

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 2
• Strony: 261--266
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Bochnowski W.

• Institute of Technics, Rzeszow University, Rejtana 16 C, 35-310 Rzeszow, Poland,

Bibliografia

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