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Title

Mechanism of Porosity Formation in Ti6Al4V Alloy Weldment

Year: 1385
COI: ISME14_551
Language: EnglishView: 1,860
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Authors

Fathallah Karimzadeh - Assistant Professor, Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran

Abstract:

In the present investigation, mechanism of porosity formation in Ti6Al4V alloy weldmenthas been studied. Welding procedure performed by using of microplasma arc welding (MPAW) process at different current and welding speed. Metallographic characterization was carried out by light microscopy and scanning electron microscopy (SEM). Metallographic characterization has shown that porosity occurs in FZ. This could be due to mechanism of the hydrogen rejection that already present in the starting base metal. Pore nucleation can be homogenous or heterogenous. Calculations have shown that homogenous nucleation is not feasible mechanism for hydrogen pore creation in this alloy.

Keywords:

Ti6Al4V alloy - Fusion zone - Heat affected zone - Microplasma arc welding – Porosity

Paper COI Code

This Paper COI Code is ISME14_551. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/27983/

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Karimzadeh, Fathallah,1385,Mechanism of Porosity Formation in Ti6Al4V Alloy Weldment,14th Annual Conference of Mechanical Engineering,Isfahan,https://civilica.com/doc/27983

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Type of center: دانشگاه دولتی
Paper count: 15,034
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