On: Additive manufacturing of an ultrastrong, deformab...

[detritus]

If you somehow accumulate for re-processing solely this alloy, then sure.

It's where it gets mixed up with other 'waste', that complicates things.

[HPsquared → detritus]

It's the same issue as plastics. But if the material becomes ubiquitous enough that it's worth building a special recycling stream, products would probably be built to facilitate recycling. Markings etc.