Whittle, a 21-year-old Royal Air Force cadet, published a thesis proposing
aircraft jet propulsion in 1928. In 1941, his engine was first used to power an
airplane. The adoption of the jet engine quickly challenged the metallurgy of the
day to deal with the unique material issues of such a high-speed and
Check out the January 2016 issue of Industrial Heating, which includes a cover story on case hardening, as well as articles on using failure analysis to discover and mitigate crack propagation, applications and properties of vacuum oil quenching, and much more.