caa a22 4500 465812066 CHVBK 20180323112119.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF02831631 doi (NATIONALLICENCE)springer-10.1007/BF02831631 Mechanical behavior of an intercritically annealed and isothermally transformed low C alloy steel with Ferrite-Bainite-Austenite microstructures [Elektronische Daten] [Yasuharu Sakuma, David Matlock, George Krauss] A low C steel containing 1.5% Mn, 1.2% Si, and 0.1% Mo was inter-critically annealed at 760 and 820° C, and either quenched in oil to room temperature, or isothermally held at 400° C and then oil quenched to room temperature. The specimens were subjected to tensile testing at temperatures between − 80° C and 120° C, and the microstructures were evaluated by light and scanning electron microscopy and x-ray diffraction. The austenite formed during intercritical annealing transformed to martensite with negligible retained austenite as a result of the direct oil quenching, while it transformed to bainite with significant amounts of retained austenite, up to 7.5%, during isothermal transformation. The retained austenite improved ductility at strength levels between 700 and 800 MPa by strain induced transformation of austenite to martensite. The benefit of the retained austenite peaked at testing temperatures between −30 and 70° C. Springer-Verlag New York Inc., 1990 Sakuma Yasuharu Colorado School of Mines, 80401, Golden, CO, USA aut Matlock David Colorado School of Mines, 80401, Golden, CO, USA aut Krauss George Colorado School of Mines, 80401, Golden, CO, USA aut Journal of Heat Treating Springer-Verlag 8/2(1990-09-01), 109-120 0190-9177 8:2<109 1990 8 136 https://doi.org/10.1007/BF02831631 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02831631 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sakuma Yasuharu Colorado School of Mines, 80401, Golden, CO, USA aut NATIONALLICENCE 700 1- Matlock David Colorado School of Mines, 80401, Golden, CO, USA aut NATIONALLICENCE 700 1- Krauss George Colorado School of Mines, 80401, Golden, CO, USA aut NATIONALLICENCE 773 0- Journal of Heat Treating Springer-Verlag 8/2(1990-09-01), 109-120 0190-9177 8:2<109 1990 8 136 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer