Using furnace and a rolling mill, how to strengthen these? (i)Commercially pure aluminium (ii) Fe-0.2%C (mild steel) (iii)Commercially pure Titanium (HCP metal; 2 methods can be used) How to strengthen these? For (i), is that just roll it and then normalise it? For(ii), forming martensite and then temper it or should be forming lower banite directly? For(iii), again rolling? unlikely... I am really nore sure about these...could anyone kindly help?