Refining As-cast beta-Ti Grains Through ZrN Inoculation

Qiu, D, Zhang, D, Easton, M, StJohn, D and Gibson, M 2018, 'Refining As-cast beta-Ti Grains Through ZrN Inoculation', Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, vol. 49, no. 5, pp. 1444-1449.


Document type: Journal Article
Collection: Journal Articles

Title Refining As-cast beta-Ti Grains Through ZrN Inoculation
Author(s) Qiu, D
Zhang, D
Easton, M
StJohn, D
Gibson, M
Year 2018
Journal name Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume number 49
Issue number 5
Start page 1444
End page 1449
Total pages 6
Publisher Springer
Abstract The columnar-to-equiaxed transition and remarkable refinement of beta-Ti grains occur in an as-cast Ti-13Mo alloy when a new grain refiner, ZrN, was inoculated at a nitrogen level as low as 0.4 wt pct. The grain refining effect is attributed to in situ-formed TiN particles that provide active nucleation sites and solute Zr that promotes constitutional supercooling. Reproducible orientation relationships were identified between TiN nucleants and beta-Ti matrix, and well explained by the edge-to-edge matching model.
Subject Mechanical Engineering not elsewhere classified
Physical Chemistry not elsewhere classified
Materials Engineering not elsewhere classified
Keyword(s) titanium-alloys
aluminum-alloys
microstructure
refinement
boron
crystallography
additions
evolution
behavior
growth
DOI - identifier 10.1007/s11661-018-4531-5
Copyright notice © The Minerals, Metals & Materials Society and ASM International 2018
ISSN 1073-5623
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