Matches in SemOpenAlex for { <https://semopenalex.org/work/W2495293784> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W2495293784 abstract "The results of an extensive study of the mechanism of formation of chromium and chromium plus vanadium diffusion coatings on ferrous alloys are described. The effects of the significant coating variables on the composition, thickness, and microstructure of the coatings are discussed. These variables include pack geometry, substrate composition, type of halide activator, type of inert filler, time, temperature, and type of chromium source material. Pack venting was shown to be a major cause of variability in coating thickness and pack composition and must be carefully controlled to produce uniform, reproducible coatings with high concentrations of Cr in the surface, Chromium uptakes were highest for ammonium- based halides of Cl and Br. High chromium uptakes can be obtained using ammonium fluoride as the activator but only in packs which do not contain oxide based materials as {open_quotes}inert{close_quotes}fillers. Fluoride activators are capable of producing carbide-free coatings on alloys such as T-11 and T-22, whereas activators based on Cl, Br, or I produce coatings with external carbide cases and a high concentration of intergranular carbides. Subsurface porosity in coatings was found to be the result of chromium deposition by a Cr-Fe interchange reaction from halides of Cl, Br, and I. Chromium ismore » not deposited by this type of reaction from fluorides and pore-free coatings can be produced in fluoride-activated packs. The overall chromizing kinetics can be described by a modification of the {open_quotes}gas diffusion-solid diffusion in series{close_quotes} mechanism applied to pack aluminizing by Gupta, et. al.« less" @default.
- W2495293784 created "2016-08-23" @default.
- W2495293784 creator A5000203000 @default.
- W2495293784 creator A5047361840 @default.
- W2495293784 date "1995-04-01" @default.
- W2495293784 modified "2023-09-27" @default.
- W2495293784 title "Study of multi-element diffusion coatings. Final report" @default.
- W2495293784 hasPublicationYear "1995" @default.
- W2495293784 type Work @default.
- W2495293784 sameAs 2495293784 @default.
- W2495293784 citedByCount "0" @default.
- W2495293784 crossrefType "journal-article" @default.
- W2495293784 hasAuthorship W2495293784A5000203000 @default.
- W2495293784 hasAuthorship W2495293784A5047361840 @default.
- W2495293784 hasConcept C127413603 @default.
- W2495293784 hasConcept C147280077 @default.
- W2495293784 hasConcept C159985019 @default.
- W2495293784 hasConcept C191897082 @default.
- W2495293784 hasConcept C192562407 @default.
- W2495293784 hasConcept C2776776789 @default.
- W2495293784 hasConcept C2781448156 @default.
- W2495293784 hasConcept C42360764 @default.
- W2495293784 hasConcept C511782168 @default.
- W2495293784 hasConcept C513153333 @default.
- W2495293784 hasConcept C5335593 @default.
- W2495293784 hasConcept C87976508 @default.
- W2495293784 hasConceptScore W2495293784C127413603 @default.
- W2495293784 hasConceptScore W2495293784C147280077 @default.
- W2495293784 hasConceptScore W2495293784C159985019 @default.
- W2495293784 hasConceptScore W2495293784C191897082 @default.
- W2495293784 hasConceptScore W2495293784C192562407 @default.
- W2495293784 hasConceptScore W2495293784C2776776789 @default.
- W2495293784 hasConceptScore W2495293784C2781448156 @default.
- W2495293784 hasConceptScore W2495293784C42360764 @default.
- W2495293784 hasConceptScore W2495293784C511782168 @default.
- W2495293784 hasConceptScore W2495293784C513153333 @default.
- W2495293784 hasConceptScore W2495293784C5335593 @default.
- W2495293784 hasConceptScore W2495293784C87976508 @default.
- W2495293784 hasLocation W24952937841 @default.
- W2495293784 hasOpenAccess W2495293784 @default.
- W2495293784 hasPrimaryLocation W24952937841 @default.
- W2495293784 hasRelatedWork W1554245812 @default.
- W2495293784 hasRelatedWork W1596249376 @default.
- W2495293784 hasRelatedWork W1602429394 @default.
- W2495293784 hasRelatedWork W1968099443 @default.
- W2495293784 hasRelatedWork W1981507769 @default.
- W2495293784 hasRelatedWork W2073468290 @default.
- W2495293784 hasRelatedWork W2077045587 @default.
- W2495293784 hasRelatedWork W2111667960 @default.
- W2495293784 hasRelatedWork W2254710039 @default.
- W2495293784 hasRelatedWork W2328544379 @default.
- W2495293784 hasRelatedWork W2461669090 @default.
- W2495293784 hasRelatedWork W3116821107 @default.
- W2495293784 hasRelatedWork W338323530 @default.
- W2495293784 hasRelatedWork W586370531 @default.
- W2495293784 hasRelatedWork W65729401 @default.
- W2495293784 hasRelatedWork W1567164216 @default.
- W2495293784 hasRelatedWork W2050482304 @default.
- W2495293784 hasRelatedWork W2249634784 @default.
- W2495293784 hasRelatedWork W2759898039 @default.
- W2495293784 hasRelatedWork W333498906 @default.
- W2495293784 isParatext "false" @default.
- W2495293784 isRetracted "false" @default.
- W2495293784 magId "2495293784" @default.
- W2495293784 workType "article" @default.