1. Microstructural Evolution Under Loss of Lubriction Conditions in Aerospace Gear Steels Restricted (Penn State Only) Author: Isaacson, Aaron Title: Microstructural Evolution Under Loss of Lubriction Conditions in Aerospace Gear Steels Graduate Program: Materials Science and Engineering Keywords: Aerospace Gear Steel FailureFrictionSurface OxidationHot HardnessLoss of Lubrication Gear FailureMicrostructural EvolutionScuffing File: Login to Download Committee Members: John Mauro, Program Head/ChairTarasankar Debroy, Major Field MemberAllison Beese, Major Field MemberTodd Palmer, Chair & Dissertation AdvisorRobert Voigt, Outside Unit & Field Member