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Effect of silicon o...
Effect of silicon on creep properties of titanium 6Al-2Sn-4Zr-2Mo alloy
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- Anti, Marta-Lena (author)
- Luleå University of Technology, Division of Materials Science, Sweden
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- Collado Ciprés, V (author)
- Sandvik Coromant, Stockholm, Sweden
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- Mouzon, J (author)
- Linnaeus University, Department of Cultural Sciences, Kalmar, Sweden
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- Åkerfeldt, P. (author)
- Luleå University of Technology, Division of Materials Science, Sweden
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- Pederson, Robert, 1973- (author)
- Högskolan Väst,Avdelningen för avverkande och additativa tillverkningsprocesser (AAT),PTW
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(creator_code:org_t)
- 2020-10-12
- 2020
- English.
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In: MATEC Web of Conferences. - : EDP Sciences. - 2261-236X. ; 321
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https://hv.diva-port... (primary) (Raw object)
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Abstract
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- The alloy Ti-6Al-2Sn-4Zr-2Mo is a titanium alloy for elevated temperatures often used in aerospace applications. Minor additions of silicon have proven to improve the creep resistance of this alloy. In this work, three different amounts of silicon (0.015, 0.07 and 0.162 wt% Si) were added to cast Ti-6242 and creep tests were performed at different temperatures and loads. Creep resistance increased significantly with silicon addition by means of silicide precipitation hindering dislocations movement. Silicon rich nanoparticles in the microstructure were detected and their effect on creep resistance was investigated. The instruments used in this study were light optical microscope (LOM) and scanning electron microscopy (SEM).
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- art (subject category)
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