Ritchie 2014 cryogenic high-entropy alloy (CrMnFeCoNi)

Rob Ritchie (formerly MIT, now Berkeley) and collaborators published an equiatomic CrMnFeCoNi alloy with excellent cryogenic fracture toughness in *Science*. Tom: "all they did was add iron to MP35N" and the strengthening mechanism (twinning) is the same. The Ashby plot reproduced in the paper is, in Tom's reading, a rediscovery.

Here's a paper from Science magazine, I ripped it out 5th of September, first day of class. This got published, I didn't get it for a couple weeks. "Metal alloys." A lot of people think Science is the epitome of great publication to get into. Not that hard to get into Science. Here's Rob Ritchie, former faculty member in mechanical engineering at MIT, now at Berkeley, and a bunch of other people from Lawrence Livermore and Lawrence Berkeley, Germany and other places, doing some basic research on a fracture-resistant high entropy alloy for cryogenic applications. The Department of Energy is always interested in building big structures like the international fusion reactor out of very tough cryogenic materials.