18 KB863 KB15 KB200020242008Amin, Mohammed MisbahulAmin, NeelofarHussin, KamarudinJamaludin, Shamsul Baharinletnik:42številka:6str. 273-276ISSN:1580-2949COBISSID:700842URN:URN:NBN:SI:doc-DCZRW3I8enInštitut za kovinske materiale in tehnologijeMateriali in tehnologijebarijev kloridkalcijev kloridkorozijanerjavna jeklaškajaThe role of chloride salts on high temperature corrosion of 321 stainless steel| Vloga kloridnih soli pri visokotemperaturni koroziji nerjavnega jekla 321|The effect of CaClsub2 and BaClsub2 salt coatings on the high temperature corrosion of 321 stainless steel at 950 compositumC in a slow current of air for the period of 72 hours were studied. The 321 alloy was severely attacked by calcium- and barium -chlorides due to formation of volatile chlorides. The data have been complemented by oxidation kinetics measurements and morphological structures were analyzed using scanning electron microscope (SEM). The elemental distribution on the alloy surface deposits were characterized by using energy dispersive X-ray (EDAX) analysis. The alkaline earth metal chloride salts have deleterious effect on the protectivity of the scale and rapid degradation of the alloy is notedRaziskan je bil vpliv prekritij s solmi CaClspodaj2 in BaClspodaj2 na visokotemperaturno oksidacijo nerjavnega jekla 321 v počasnem toku zraka pri 950 kompozitumC v trajanju do 72 h. Zaradi nastanka volatilnih kloridov sta oba klorida zlitino močno napadla. Določena je bila kinetika oksidacije, morfologija pa je bila določena z opazovanjem v vrstičnem mikroskopu. Porazdelitev elementov v depozitu na površini je bila določena z energijsko disperzivno spektrometrijo (EDAX). Kloridi alkalnih kovin močno zmanjšajo varovalnost škaje in povzročijo hitro degradacijo zlitineTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije