کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
831302 908102 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of oxygen content on microstructure and mechanical properties of Ti–Nb–Ta–Zr alloy
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Influence of oxygen content on microstructure and mechanical properties of Ti–Nb–Ta–Zr alloy
چکیده انگلیسی

The influence of oxygen content on microstructure and mechanical properties of Ti–22.5Nb–0.7Ta–2Zr (at.%) alloy was investigated in this work. According to experiments, the grains were refined apparently when the oxygen content was between 1.5% and 2.0%. The ultimate tensile strength (UTS) increased and elongation decreased with increasing oxygen content. But at the content of 1.0%, the elongation was nearly the same to that of the original alloy (about 16%). The elastic modulus remained comparatively low (<65 GPa) when the content was lower than 1.5%, and then increased dramatically. Therefore, there existed the best oxygen content-1.0%, at which fine grains were obtained, as well as UTS of 750 MPa, elongation of 16% and elastic modulus of 65 GPa. The Ti–22.5Nb–0.7Ta–2Zr–1.0O alloy maintained typical ductile fracture characteristics of beta titanium alloy, and had a little superelasticity.

Research highlights
► It focused on the influence of oxygen on microstructures and properties of beta titanium alloys.
► Gum Metal has ‘‘superproperties” different with TNTZ alloy, except for the addition of oxygen.
► The change of superelasticity of Ti–Nb–Ta–Zr–O via the addition of oxygen was discussed in the work.
► The comprehensive mechanical properties was improved for Ti–22.5Nb–0.7Ta–2Zr–1.0O alloy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 32, Issue 5, May 2011, Pages 2934–2939
نویسندگان
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