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Chemical Milling of...
Chemical Milling of Cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo Alloys in Hydrofluoric-Nitric Acid Solutions
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- Sefer, Birhan, 1983- (författare)
- Luleå tekniska universitet,Materialvetenskap,Division of Materials Science, Luleå University of Technology, Luleå, Sweden / Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya, Barcelona, Spain
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- Dobryden, Illia (författare)
- Luleå tekniska universitet,KTH,Yt- och korrosionsvetenskap,Division of Materials Science, Luleå University of Technology, Luleå, Sweden / Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Stockholm, Sweden,Materialvetenskap,Division of Surface and Corrosion Science, KTH Royal Institute of Technology
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- Almqvist, Nils (författare)
- Luleå tekniska universitet,Materialvetenskap,Division of Materials Science, Luleå University of Technology, Luleå, Sweden
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- Pederson, Robert, 1973- (författare)
- Luleå tekniska universitet,Högskolan Väst,Avdelningen för svetsteknologi (SV),Division of Materials Science, Luleå University of Technology, Luleå, Sweden / Research and Technology Centre, GKN Aerospace Engine Systems, Trollhättan, Sweden,Materialvetenskap
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- Antti, Marta-Lena (författare)
- Luleå tekniska universitet,Materialvetenskap,Division of Materials Science, Luleå University of Technology, Luleå, Sweden
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(creator_code:org_t)
- Association for Materials Protection and Performance (AMPP), 2017
- 2017
- Engelska.
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Ingår i: Corrosion. - : Association for Materials Protection and Performance (AMPP). - 0010-9312 .- 1938-159X. ; 73:4, s. 394-407
- Relaterad länk:
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http://urn.kb.se/res...
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https://urn.kb.se/re...
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https://doi.org/10.5...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The behavior of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo during chemical milling in hydrofluoric-nitric (HF-HNO3) acid solutions with 1:3 and 1:11 molar ratios was investigated using electrochemical and atomic force microscopy (AFM) techniques. Faster corrosion rate in 1:3 solutions was measured for Ti-6Al-4V than for Ti-6Al-2Sn-4Zr-2Mo, whereas in 1:11 solution Ti-6Al-2Sn-4Zr-2Mo exhibited higher corrosion rate. Scanning Kelvin probe force microscopy measurements revealed difference in the Volta potential between the α-laths and the β-layers in the Widmansttäten microstructure indicating operation of microgalvanic cells between the microconstituents when in contact with HF-HNO3 solution. The AFM topography measurements demonstrated faster corrosion of the α-laths compared to the β-layers, in both alloys. In 1:3 solutions, higher α/β height difference was measured in Ti-6Al-4V, whereas in 1:11 solution, the difference was higher in Ti-6Al-2Sn-4Zr-2Mo. The results revealed that the chemical milling behavior of the two investigated alloys is controlled by the microscopic corrosion behavior of the individual microconstituents.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Atomic force microscopy
- chemical milling/pickling
- galvanic corrosion
- linear polarization resistance
- scanning Kelvin probe force microscopy
- titanium alloys
- Other Materials Engineering
- Annan materialteknik
- Other Physics Topics
- Annan fysik
- Manufacturing and materials engineering
- Produktions- och materialteknik
- Materialteknik
- Experimentell fysik
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