CHARACTERISTICS OF THE MICROSTRUCTURE AND GRAIN SIZE OF S690QL STEEL IN THE HARDENED AND TEMPERED STATE
Steel S690 QL is a high-strength quenched and tempered, fine-grained structural steel with a minimum yield strength of ReH of 690 MPa and with guaranteed toughness (Charpy) for rolled plates with a thickness of 3 to 50 mm. This paper presents the examination and analysis of the microstructure and grain size results after quenching an...
By Mirsada Oruč, Aida Imamović, Almaida Gigovic-Gekic, Milenko Rimac
MICROSTRUCTURAL DEGRADATION OF BOILER HEADERS STEELS UNDER LONG TERM EXPOSURE TO HIGH TEMPERATURE
This paper describes the process of degradation of the structure of the inlet header of the intermediate reheater (MPr) 2 input header at the boiler of Unit 7 of the Thermal Power Plant Kakanj, determined on the basis of tests of replicas and hardness at characteristic places of the header. Headers, with minor delays, have been in co...
By Armin Husika, Belma Fakić, Milenko Rimac
NDT TESTING AND DETERMINATION OF THE STATE OF THE MATERIALS OF THE HEADERS OF THE BOILER UNIT 5 IN THE THERMAL POWER PLANT KAKANJ
In order to examine the state of critical components of the boiler of Unit 5 of Kakanj Thermal Prema wer Plant, headers were tested in order to undertake appropriate technological measures and activities on the basis of insight into the current state of affairs, and to make recommendations for further exploitation. From first commiss...
By Armin Husika, Belma Fakić, MIlenko Rimac
SOCIALLY RESPONSIBLE BEHAVIOR IN THE PROCESS OF THE PRODUCTION AND ELECTION OF THE TECHNOLOGY
In Europe and the world number of companies and institutions which in development strategies include social responsibility strategies is bigger every day. It is a response to market demands and pressures of economic and social community on the issue of environmental protection. Corporate social responsibility is the responsibility of the company as...
By Neira Delić, Milenko Rimac, Mirsada Oruč