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NASA invented wheels that never get punctured
(www.zmescience.com)
This is a most excellent place for technology news and articles.
You can change the Af temp, but it is not relevant in this case because they are using the superelastic properties, not the shape memory properties if Nitinol.
https://matthey.com/products-and-markets/other-markets/medical-components/resource-library/nitinol-specification-guidelines
I question many aspects of this design for the consumer market, but not as you describe. Seems to me it's likely to be very expensive, and while you might not get flats it is still going to wear no matter what.