Impact properties of a laminated composite based on ultrahigh carbon steel and Hadfield manganese steel

Shyong Lee, J. Wadsworth, Oleg D. Sherby

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14 Scopus citations

Abstract

The V-notch impact properties of a laminated composite based on ultrahigh carbon steel (UHCS) and Hadfield manganese steel (HMS) were investigated in the temperature range -196 to 25°C. The impact properties were evaluated after heat treatment above the A1 transformation temperature of the ultrahigh carbon steel. The laminated composite exhibits a DBTT of -100°C which is lower than either of the monolithic steels that make up the laminate. This is a result of notch blunting from two sources; one source is delamination at the laminate interfaces, and the other source is plastic flow in the HMS matrix. A selectively heat treated laminated composite with very hard UHCS layers (Rc = 66) and soft HMS layers (Rc = 17) exhibits a good notch impact toughness of 51J at room temperature. This is attributed to crack blunting by the tough HMS layers and to cracking of the UHCS layers during impact.

Original languageEnglish
Pages (from-to)233-248
Number of pages16
JournalRes mechanica
Volume31
Issue number3
StatePublished - 1990

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