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Vol 11, Issue 1, 2016
Pages: 141 - 146
Case study
Metallic materials
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Published: 21.04.2016. Case study Metallic materials

THE INFLUENCE OF ZIRCONIUM ON THE MACHINABILITY AND IMPACT ENERGY OF AUSTENITIC STAINLESS STEEL

By
Derviš Mujagić ,
Derviš Mujagić
Contact Derviš Mujagić

Institute Kemal Kapetanović, University of Zenica , Zenica , Bosnia and Herzegovina

Aida Mahmutovic ,
Aida Mahmutovic

Faculty of engineering and natural sciences, University of Zenica , Zenica , Bosnia and Herzegovina

Mustafa Hadžalić ,
Mustafa Hadžalić

Institute Kemal Kapetanović, University of Zenica , Zenica , Bosnia and Herzegovina

Amna Karić
Amna Karić

Faculty of engineering and natural sciences, University of Zenica , Zenica , Bosnia and Herzegovina

Abstract

Stainless steel plays an important role in all emerging technologies. Detrimental effects of inclusions 
in steel do not only depend on their sizes, shape, distribution, but also on their chemical composition 
and mechanical properties. For this reason, the control of formation of non metallic inclusions and 
the characterization present the basis of improvement of steel product properties and lead to 
sustainable development in design of new steel grades. In order to produce steels with better 
machinability, such as AISI 303 grades, a modification of inclusions with carefully designed chemical 
composition is presented. In this work detailed SEM/EDS analyses of inclusions – manganese 
sulphides modified by zirconium are presented. Also, the results of tests of machinability (cutting 
force and surface roughness) and impact energy for the melt without additions of alloying elements 
and with the addition of zirconium are presented.  

References

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ispatgurucom/zirconium-in-steels/.
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Mujagić D. Contribution to the research of influence microalloying boron, zirconium and tellurium on properties of austenitic stainless steel with sulfur addition X8CrNiS18-9.

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