کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1572493 1000684 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of heat treatment on the fatigue life of a laser-welded NiTi alloy wire
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Influence of heat treatment on the fatigue life of a laser-welded NiTi alloy wire
چکیده انگلیسی

The influence of heat treatment on the rotating–bending fatigue of a laser-welded superelastic NiTi alloy wire was investigated. In comparison with the as-welded and annealed at 500 °C for 1 h specimens, the specimen annealed at 400 °C for 1 h shows the best fatigue resistance. The difference of fatigue life in the heat-treated materials is attributed to the different Ti3Ni4 precipitate size. Heat treatment to produce smaller coherent precipitates (10 nm) improves the fatigue resistance of the laser-welded NiTi alloy wire. When the Ti3Ni4 precipitates become coarse, the fatigue resistance decreases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 58, Issue 3, March 2007, Pages 262–266
نویسندگان
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