Search for dissertations about: "high temperature wear"
Showing result 1 - 5 of 140 swedish dissertations containing the words high temperature wear.
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1. High Temperature Wear Processes
Abstract : Moving machine assemblies are increasingly exposed to extreme operating conditions involving high temperatures owing to demands on higher power densities, high performance/efficiency and extreme environments. The changes in surface and near surface properties of contacting surfaces caused by exposure to high temperature and deformation govern the occurrence of friction, wear and material transfer of the tribological system. READ MORE
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2. Wear mechanisms in sheet metal forming : Effects of tool microstructure, adhesion and temperature
Abstract : The general trend in the car body manufacturing industry is towards low-series production and reduction of press lubricants and car weight. The limited use of lubricants, in combination with the introduction of high and ultrahigh-strength sheet materials, continuously increases the demands on the forming tools. READ MORE
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3. High temperature galling : influencing parameters and mechanisms
Abstract : Damage of forming tools at elevated temperatures is a major problem in metal forming processes such as hot stamping. Of special importance is the occurrence of adhesion and gross material transfer from the work-piece to the tool surface, a phenomenon known as galling. READ MORE
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4. On the role of microstructure in wear of nanostructured carbide-free bainitic steels
Abstract : The significance of steel production for the development of sustainable society and economy is immense. Today’s fast growing global economy poses an increasing demand for improving the properties of steel. READ MORE
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5. Investigation on the Influence of Nodularity in Machining of Compacted Graphite Iron (CGI)
Abstract : Stringency of environmental legislation on emission rates and increasing vehicle performance requirements are pushing the automotive and heavy truck industries to find new solutions for their diesel engines. Two potential opportunities to address these challenges involve increased combustion pressure to obtain more efficient combustion or reducing the weight of the engine. READ MORE