Journal Published Online: 01 November 1994
Volume 22, Issue 6

Charpy Transition Studies of an Embrittled AISI 8640 Lower Bainitic Steel

CODEN: JTEVAB

Abstract

A study was performed of the effects of phosphorus and arsenic as embrittling agents on the Charpy impact behavior of resulfurized AISI 8640 steel. The steel was heat-treated to several bainitic and one martensitic condition with a wide range of strength levels. Charpy transition temperature curves were developed for each condition. SEM fractography was used to analyze the fracture behavior of the various heat-treated structures. The results show that AISI 8640 steel with high phosphorus and high arsenic was embrittled in the low-strength bainitic condition as well as in the high-strength martensitic condition. Embrittlement was evidenced by low Charpy impact energies, increased transition temperatures, and an intergranular fracture mode.

Author Information

Rinnovatore, JV
U.S. Army Armament Research, Development and Engineering Center, Picatinny Arsenal, NJ
Lukens, KF
U.S. Army Armament Research, Development and Engineering Center, Picatinny Arsenal, NJ
Reinhold, J
U.S. Army Armament Research, Development and Engineering Center, Picatinny Arsenal, NJ
Mahon, W
U.S. Army Armament Research, Development and Engineering Center, Picatinny Arsenal, NJ
Pages: 5
Price: $25.00
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Details
Stock #: JTE11855J
ISSN: 0090-3973
DOI: 10.1520/JTE11855J