Published March 11, 2020

Issue Description

The Cover Image is a  polarized light micrograph (magnification 600x) of crystals in quenched steel in a matrix of austenite, by Harlan H. Baker, Ames, Iowa, USA. Courtesy of Nikon Small World (7th Place, 1977 Photomicrography Competition, https://www.nikonsmallworld.com).

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