Which influences or impurities (e.g. additional elements) could transform a structure from fcc to bcc?
Dear Anke,
the pdf in the attached link could help you.
The pdf is accessable at the lower rim of the first page.
In the second link stress is mentioned as the origin of phase transformation.
Good luck
http://repository.tudelft.nl/islandora/object/uuid:0452d79c-5bcf-4fe2-96b9-911693a1f4d7?collection=research
http://repository.tudelft.nl/islandora/object/uuid:f7c0a0e5-dee7-43de-a9d2-952b03830858?collection=research
Generally, alloying with bcc stabilising metals which themselves have bcc structures e.g. Cr, Fe, V and Nb, will help. Temperature and pressure influence the transformation.
Pure iron transforms from fcc to bcc when heated through 1392 deg C.
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