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I wonder if you could do this with similar metal alloys to get an ingot that changes physical properties along its length - for example, a bar that's harder on
by saulrh 9y ago
I wonder if you could do this with similar metal alloys to get an ingot that changes physical properties along its length - for example, a bar that's harder on one end but more elastic on the other.
- blacksmith_tb 9y agoThat sounds similar to Powder Metallurgy[1] which we use to make otherwise impossible alloys possible. 1: https://en.wikipedia.org/wiki/Powder_metallurgy https://en.wikipedia.org/wiki/Powder_metallurgy
- bocklund 9y agoLook up additive manufacturing of gradient alloys. Lots of people are trying to do things like print one end as a titanium alloy and transition to stainless steel in the same build.
- javiramos 9y agoOne of the practical problems with this is galvanic corrosion between the distinct metals.
- andrewflnr 9y agoYou may be interested in how jet turbine blades are made: https://news.ycombinator.com/item?id=12474148 https://news.ycombinator.com/item?id=12474148 That process seems a bit subtler, since it's more about conditions than composition, but the end result is varying properties along the turbine.