کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1637850 1516986 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Welding of shape memory alloy to stainless steel for medical occluder
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Welding of shape memory alloy to stainless steel for medical occluder
چکیده انگلیسی
Dissimilar metal joining between NiTi shape memory alloy (SMA) and stainless steel was conducted. A cluster of NiTi SMA wires were first joined with tungsten inert gas (TIG) welding process, then the NiTi SMA TIG weld was welded to a stainless steel pipe with laser spot welding process. The microstructure of the welds was examined with an optical microscope and the elemental distribution in the welds was measured by electron probe microanalysis (EPMA). The results show that TiC compounds dispersively distribute in the NiTi SMA TIG weld. However, the amount of TiC compounds greatly decreases around the fusion boundary of the laser spot weld between the NiTi SMA and stainless steel. Mutual diffusion between NiTi shape memory alloy and stainless steel happen within a short distance near the fusion boundary, and intermetallic compounds such as Ni3Ti+(Fe,Ni)Ti appear around the fusion boundary.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 23, Issue 1, January 2013, Pages 156-160
نویسندگان
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