Search for dissertations about: "bearing steel"

Showing result 1 - 5 of 82 swedish dissertations containing the words bearing steel.

2. 1. Influence of Ferrochromium and Ferromanganese Additions on Inclusion Characteristics of Steel

   Author : Thobias Sjökvist; KTH; []
   Keywords : Non-metallic inclusions; Ferroalloys; Ferrochromium; Ferromanganese; SEM; Microprobe; Steel; Fullscale; SS111116; Bearing Steel;

   Abstract : .... READ MORE

4. 2. Microstructural Decay in High-Strength Bearing Steels under Rolling Contact Fatigue

   Author : Tania Loaiza; Peter Hedström; Mårten Olsson; Steve Ooi; Prasath Babu; Harry Bhadeshia; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Microstructural decay; microscopy; rolling contact fatigue; Hybrid 60 steel; Bearing steel; 52100; dislocations; ferrite microbands; Mikrostrukturell nedbrytning; mikroskopi; rullande kontaktfatigue; Hybrid 60-stål; dislokationer; Materials Science and Engineering; Teknisk materialvetenskap;

   Abstract : The work presented in this thesis aims to enhance our understanding of material decay in high-strength steels used for bearing applications. The primary objective is to investigate the microstructural changes in two high-strength steels: 52100 steels, a popular bearing steel, and Hybrid 60, a relatively new bearing steel designed for long fatigue life and use at elevated temperatures. READ MORE

5. 3. Bracing of steel bridges during construction; theory, full-scale tests and simulations

   Author : Hassan Mehri; Avdelningen för Konstruktionsteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bracing; steel-concrete composite; steel; bridge; test; construction; laboratory; experiment; experimental; theory;

   Abstract : A number of steel bridges have suffered lateral-torsional failure during their construction due to their lacking adequate lateral and/or rotational stiffness. In most cases, slight bracing can be of great benefit to the main girders involved through their controlling out-of-plane deformations and enabling the resistance that is needed to be achieved. READ MORE

6. 4. On Surface Topography of Steel Sheet for Car Bodies

   Author : Magnus Jonasson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; paint appearance; forming; steel sheet; bearing area; 3D surface roughness; area parameters; ball filter; friction; surface topography;

   Abstract : This thesis is a contribution to the scientific area of surface topography on sheet metal surfaces. The studies are restricted to exploring the influence of the steel sheet,s surface topography on forming properties and on appearance after painting. READ MORE

7. 5. A Study of Slag/Metal Equilibrium and Inclusion Characteristics during Ladle Treatment and after Ingot Casting

   Author : Hamid Doostmohammadi; Pär Jönsson; Lauri Holappa; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inclusions; thermodynamics; ladle treatment; vacuum; tool steel; bearing steel; slag; equilibrium; slag carryover; oxides; sulfides.; Metallurgical process engineering; Metallurgisk processteknik;

   Abstract : Today, there is a high demand on clean steel for high performance materialproperties. Thus, steel producers try to deliver a steel product with the highestquality and cleanliness to the market. The number of parameters that affect thesteel cleanliness may vary depending on the required material properties of thefinal product. READ MORE