Evaluation of Microstructure and Properties of Medium-Manganese Steels Modified with Molybdenum
Abstract
Three medium-manganese steels with varying manganese, carbon, and aluminum levels were investigated as a function of heat treatment and molybdenum additions. Effects of alloying and heat treatment in the wrought plates were characterized through microstructure and hardness evaluation. Further examination of selected alloy conditions included tensile and Charpy v-notch impact testing. Results showed that molybdenum additions enabled simultaneous increases in both hardness and toughness unique increases in two properties that are typically inversely correlated. The 40 C Charpy v-notch impact properties correlated well with the quasi-static tensile reduction in area of these alloys. This correlation is also demonstrated in other medium-manganese, high-nickel, and low-alloy ultrahigh strength steels found in literature.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 26, 2023
- Accession Number
- AD1217514
Entities
People
- B.C. Hornbuckle
- Daniel Field
- Daniel J. Magagnosc
- Jeffrey T. Lloyd
- Krista R Limmer
Organizations
- United States Army Research Laboratory