influence of deformation technology on fatigue properties of titanium

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ID: 180045
2014
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Abstract

The influence of commercially pure Titanium microstructure on fatigue properties and their improvement or deterioration is analyzed in the presented contribution. One tested material was after cold drawing the other after severe plastic deformation by Equal Channel Angular Pressing (ECAP). Intense plastic deformation (ECAP) resulted in yield point 100 % higher and UTS 97% higher than obtained by traditional cold drawing. The ductility was 57% lower than for cold drawing. However, the fatigue properties namely the degradation of fatigue properties were influenced by sever plastic deformation in a way not consistent with the usually counted influence on mechanical properties and more, the fatigue limit was lower for high numbers of fatigue cycles. For N = 5,5. 105 the fatigue limits in torsion τC for Ti after ECAP and after cold drawing were identical. For N < 5,5. 105 cycles the τC for Ti after ECAP was higher, but for N > 5,5. 105 cycles it was lower.

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miche2014materilovinfluence Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Ján Micheľ;Marián Buršák;Petra Lacková
Journal australasian psychiatry : bulletin of royal australian and new zealand college of psychiatrists
Year 2014
DOI
DOI not found
URL
http://ojs.mateng.sk/index.php/Mateng/article/view/121
Keywords
titanium mechanics of materials

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