Search for dissertations about: "building material ageing"

Showing result 6 - 10 of 16 swedish dissertations containing the words building material ageing.

2. 6. Hygrothermal Durability of Adhesively Bonded FRP/steel Joints

   Author : Mohsen Heshmati; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cohesive zone modelling; durability; moisture diffusion; Fibre reinforced polymer; adhesively bonded FRP steel joints; long-term performance;

   Abstract : Fibre reinforced polymer (FRP) composites offer superior mechanical properties, such as specific strength and stiffness, corrosion resistance and light weight. Over the past four dec-ades, FRPs have been increasingly used for strengthening and repair of bridge structures, and more recently, in the manufacture of whole/hybrid FRP bridges. READ MORE

4. 7. Laser powder bed fusion processing and heat treatment of Ni-base superalloys: microstructure and properties

   Author : Abdul Shaafi Shaikh; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microstructure.; Additive manufacturing; heat treatment; Inconel 939; Haynes 282; superalloys; powder bed fusion – laser beam;

   Abstract : Nickel-base superalloys are indispensable materials for the energy and aerospace industries. The additive manufacturing (AM) of these materials by powder bed fusion – laser beam (PBF-LB) presents a valuable opportunity to improve component performance and ease manufacturing and supply chain complexity in these industries. READ MORE

5. 8. Minimisation of Chromium Leaching from Low-Alloy Electric Arc Furnace Slag by Mineral Modifications

   Author : Ida Strandkvist; Fredrik Engström; Rainer Backman; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; slag; leaching; minerals; Process Metallurgy; Processmetallurgi;

   Abstract : Iron and steel are produced continuously as a vital part of modern life. The largest by-product of metal production is slag. Slag is an essential part of the production of steel since, in the furnace, the molten slag removes impurities from the metal. When the slag which consists of oxides, solidifies minerals form. READ MORE

6. 9. Alloy Design and Characterization of γ′ Strengthened Nickel-based Superalloys for Additive Manufacturing

   Author : Jinghao Xu; Johan Moverare; Ru Lin Peng; Eric Jägle; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nickel-based superalloy; Alloy design; Laser powder bed fusion; Cracking susceptibility; Additive manufacturability; Heat treatment; γ′ precipitate; High-temperature mechanical property; Creep.;

   Abstract : Nickel-based superalloys, an alloy system bases on nickel as the matrix element with the addition of up to 10 more alloying elements including chromium, aluminum, cobalt, tungsten, molybdenum, titanium, and so on. Through the development and improvement of nickel-based superalloys in the past century, they are well proved to show excellent performance at the elevated service temperature. READ MORE

7. 10. Spherical Indentation Technique for Multiscale Characterisation of Asphalt Mixtures

   Author : Hassan Fadil; Denis Jelagin; Manfred Partl; Per-Lennart Larsson; Said Safwat; Eshan Dave; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Building Materials; Byggnadsmaterial;

   Abstract : The viscoelastic properties of asphalt  mixtures  strongly  influence the  performance of flexible pavements  with respect to  their resistance to several common distress modes. Therefore, accurate measurement of these properties and their change during the service life is an important area of ongoing research. READ MORE