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Ageing evaluation of the heterogeneous weld joint based on instrumented indentation
Dlouhý, Ivo ; Hadraba, Hynek ; Stodola, M. ; Čupera, Pavel
Hardness measurement analyses are presented in the report being focused on base materials of heterogeneous weld joint and its simulated ageing. The change of the instrumented indentation/hardness data is analysed across the weld joint from low carbon steel to highly alloyed weld metal. Methodology for parameter computing of the material characteristics is also described based on data of instrumented indentation tests. The raw data have been supplied also to be available for further development of the methodology.
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Aging assessment of heterogeneous weld on the basis of instrumented indentation
Dlouhý, Ivo ; Hadraba, Hynek ; Stodola, M. ; Čupera, Pavel ; Al Khaddour, Samer
Sets of data for development of computing procedures of tensile loading curves from indentation curves have been summarised. The data obtained have been supplied also in digital form (tables) representing indentation curves for different loads by ball indentation technique and, in addition, tensile loading curves of the same microstructures obtained at room temperature. The paper focuses interest on the effect of simulated ageing on fracture behaviour of sub weld deposit regions, and, in addition, empirical analyses of indentation curves obtained from the interface between 22K low carbon steel and weld deposit.
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Zpracování návrhu výběrového řízení veřejné instituce dle platné legislativy
Gotvald, Vladimír ; Vyskočil, Vlastimil (advisor) ; Stodola, Miloslav (referee)
Facility management is one of the key business operations of a firm, which enables the firm to cut its costs substantially and to save considerable financial resources. One of the possibilities is to outsource part of the responsibility for secondary cost onto external suppliers, who provides a higher quality operation management at a lower cost. In the case of a public submitter, with a regard to management of public sources, a transparent selection procedure of an external supplier is necessary to compare the offers and select the best one. A facility manager has to face a difficult task of setting the selection procedure in a transparent way, ensuring that no subject would be favoured, and it would allow selecting a supplier providing the best possible quality, time and the lowest cost. A public tender need to be put up in a way to enable an enrolment to as many subjects as possible, among whom the optimal offer would be chosen, in terms set in advance.
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