Episode 86 of the Professor Alex Volinsky podcast. Fine semicoherent Nb/V/Ti/Mo carbide nanoprecipitates fight hydrogen embrittlement in martensitic steels by trapping hydrogen and refining the matrix; protection scales with precipitate size, number, and distribution. Based on the paper: Review of Metal Carbide Nanoprecipitate Effects on Hydrogen Embrittlement of High Strength Martensitic Steel; Y. Zheng, H. Sun, L. Yan, X. Pang, A.A. Volinsky, K. Gao; Anti-Corrosion Methods and Materials, 2022, Vol. 69, pp. 409-416. Hosts Elena and Marcus. AI-generated voices.