Jane has it! English gamma-phase iron! (9)

I believe the answer is:

austenite

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'gamma-phase iron' is the definition.
I can't judge whether this defines the answer.

'jane has it english' is the wordplay.
'jane has' becomes 'austen' (I can't justify this - if you can you should believe this answer much more).
'english' becomes 'e' (abbreviation).
'austen'+'it'+'e'='AUSTENITE'

Can you help me to learn more?

(Other definitions for austenite that I've seen before include "Carbon steel" , "metallic material" .)

I've seen this clue in the Sydney Morning Herald.

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