Pearlite in ultrahigh carbon steels: Heat treatments and mechanical properties
- Univ. of Texas, Austin, TX (United States). Dept. of Aerospace and Engineering Mechanics
- Lawrence Livermore National Lab., CA (United States). Manufacturing and Materials Engineering Div.
- Stanford Univ., CA (United States). Dept. of Materials Science and Engineering
Two ultrahigh carbon steel (UHCS) alloys containing 1.5 and 1.8 wt pct carbon, respectively, were studied. These materials were processed into fully spheroidized microstructures and were then given heat treatments to form pearlite. The mechanical properties of the heat-treated materials were evaluated by tension tests at room temperature. Use of the hypereutectoid austenite-cementite to pearlite transformation enabled achievement of pearlitic microstructures with various interlamellar spacings. The yield strengths of the pearlitic steels are found to correlate with a predictive relation based on interlamellar spacing and pearlite colony size. Decreasing the pearlite interlamellar spacing increases the yield strength and the ultimate strength and decreases the tensile ductility. It is shown that solid solution alloying strongly influences the strength of pearlitic steels.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 203522
- Journal Information:
- Metallurgical Transactions, A, Vol. 27, Issue 1; Other Information: PBD: Jan 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Influence of microstructure on tensile properties of spheroidized ultrahigh-carbon (1. 8 pct C) steel
Mechanical behavior of ultrahigh strength ultrahigh carbon steel wire and rod