The influence of chemical composition on peak strain of deformed austenite in low alloy and microalloyed steels

Journal Article · Mon Jan 01 04:00:00 EST 1996 · Acta Materialia

DOI:https://doi.org/10.1016/1359-6454(95)00152-2· OSTI ID:271700

Medina, S F ^[1]; Hernandez, C A ^[2]

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1. Centro Nacional de Investigaciones Metalurgicas, Madrid (Spain)
2. Univ. Autonoma de Mexico, Mexico City (Mexico). Facultad de Quimica D

Using hot torsional tests, the influence of the most common elements in low alloy steels (C, Mn, Si, Mo) and in microalloyed steels (Ti, V, Nb) on peak strain has been studied. At the temperatures (900, 1000 and 1100 C) and strain rates (0.544, 1.451, 3.628 and 5.224 s{sup {minus}1}) at which the tests were carried out all the elements remained in solution during deformation with the exception of titanium which was in part previously precipitated. In these conditions, the results indicate that C, Si and Mn have hardly any influence on the value of peak strain ({epsilon}{sub p}) while Mo, V, Ti and particularly Nb considerably increase its value. The study has been completed with the modelling of {epsilon}{sub p} as a function of the Zener-Hollomon parameter and the austenite grain size for all the steels studied, showing the quantitative influence of the different alloying elements.

• OSTI ID: 271700
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 1 Vol. 44; ISSN XZ504Y; ISSN 1359-6454
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBON
GRAIN SIZE
LOW ALLOY STEELS
MANGANESE
MICROSTRUCTURE
MOLYBDENUM
NIOBIUM
PRECIPITATION
SILICON
STRAIN RATE
STRAINS
STRESSES
TEMPERATURE DEPENDENCE
TITANIUM
TORSION
VANADIUM