20 KB1058 KB19 KB200020242006Skobir Balantič, Danijela AnicaSpiegel, Michaelletnik:405 straništevilka:6str. 247-252ISSN:1580-2949COBISSID:579498URN:URN:NBN:SI:doc-HGSCQQVTenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijekorozijamikrostrukturapreiskava materialasimulacijezlitineThe stability of cast alloys and CVD coatings in a simulated biomass-combustion atmosphere|The corrosion resistance in a biomass-combustion environment was studied for the following materials: cast alloys (Alloy 800, Inconel 617, 1.4910, HCM 12 and P91), Fe-9 % Cr model alloys with and without additions of Al, Si and Mo, and cast alloys coated using the pack-cementation process with Al and Al-Si. The simulated atmosphere for the biomass-combustion environment contained 200g/g HCl, volume fractions 13 % COsub2, 22 % Hsub{2}O and 5 % Osub2. The samples were covered with a salt mixture of mass fractions of 52.4 % KCl and 47.6 % Ksub{2}SOsub{4} in order to simulate the corrosion beneath the deposits. The specimens were exposed for 1000 h at the test temperature of 550 °CS korozijskimi preizkusi v simulirani atmosferi za zgorevanje biomas smo raziskovali korozijsko obstojnost naslednjih materialov: lite zlitine (zlitina800, Inconel 617, 1.4910, HCM 12 in P91), modelne zlitine Fe-9 % Cr z dodatki Al, Si in Mo in brez njih ter lite zlitine, na katere je bila s CVD-postopkom nanesena plast Al oziroma Al-Si. Simulirana atmosfera za zgorevanje biomas je vsebovala 200 g/g HCl in prostorninske deleže: 13 % COspodaj2, 22 % Hspodaj{2}O in 5 % Ospodaj2. Vzorci so bili prekriti s solno mešanico z masnima deležema 52,4 % KCl in 47,6 % Kspodaj{2}SOspodaj{4} za simulacijo korozije pod depoziti. Preizkusi so potekali pri temperaturi 550 °C, čas trajanja preizkusov pa je bil 1000 hTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije