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Extensive studies on alloy steels have correlated temper embrittlement with the presence of electronegative elements such as Sb, P, Sn, and As. This paper studies the relationship of impurity grain boundary segregation to several of the steps involved in the embrittling process through Auger electron spectroscopic analysis of the fracture surfaces of several steels that are distinguished by a ductile-brittle transition.
spectroscopy, Auger electrons, electron microscopy, embrittlement, separation, fracturing, sputtering, austenitizing, isothermal treatment, grain boundaries, alloy steels, antimony, phosphorus, tin, molybdenum
Group leader, North American Rockwell Science Center, Thousand Oaks, Calif.
Research associate, North American Rockwell Science Center, Thousand Oaks, Calif.
Research director, Physical Electronics Industries, Inc., Edina, Minn.