U.S. Department of Energy @ENERGY
Mmm😋.. steel onion rings? 👀 Well, it's on the menu at @ORNL! Scientists use friction welding to hold two pieces of high-strength steel together. The welding process leaves a circular “onion ring” pattern. https://t.co/A84PNe1QlO https://t.co/WTHlYgys39 — PolitiTweet.org