Master of Science
Materials Science and Engineering
Libsch, Joseph F.
In spite of the recognized superiority of tempered martensite, a loss in notch toughness is frequently encountered. It has been investigated by several authors and associated with transition type behavior from ductile to brittle failure.
Vlad, Constantin M., "Influence of different tempering methods on "500 degrees F embrittlement" in AISI 4340 steel" (1963). Theses and Dissertations. 3179.