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- Title
Soda Kireç Silikat Cam - 304 L Paslanmaz Çelik Birleştirmesinde Ti/Ag Ara Katman Kullanımı.
- Authors
Telli, Mustafa Burak
- Abstract
Glass - metal joining is important for improving efficiency of heat collecting units employed in parabolic through solar energy collecting systems. If soda lime silicate glass joined to 304L stainless steel successfully, they could be an economical alternative. Due to big thermal expansion coefficient difference, it is difficult to join soda lime silicate glass - 304L stainless steel directly. In this study, glass - 304L joining was achieved by using Ti/Ag layer with a heat treatment at 800 °C in air ambient. Soda lime silicate glass to Ti/Ag/304L joining was investigated with optical and scanning electron microscopes to reveal interfacial reactions between glass and Ti/Ag/304L. Residual stress and strains developed in joined parts due to high temperature joining and cool down to room temperature were modeled employing ANSYS 14 Multiphysics finite element method software. Experimental findings and modeling results were compared and it was concluded that residual stress and strain levels needed to be stayed low in glass region at joining interface for the successful glass - 304L joining. According to modeling results, joined glass layer experienced the highest 95 MPa maximum and lowest -50 MPa minimum principal stress levels. While Ag layer had up most 80 MPa maximum principal stress levels, Ti layer had lowest -130 MPa s minimum principal stress levels. Due to residual stress, soda lime silicate glass experienced equivalent elastic strain with the highest levels at the order of 0.00126 mm/mm and Ag layer experienced equivalent plastic strain with the highest levels at the order of 0.025 mm/mm.
- Publication
Karaelmas Science & Engineering Journal / Karaelmas Fen ve Mühendislik Dergisi, 2016, Vol 6, Issue 2, p393
- ISSN
2146-4987
- Publication type
Article