Effect of intercritical quenching on microstructure and tensile properties of steels 15 and 15Mn2Nb

The microstructure and tensile properties of steels 15 and 15Mn2Nb after quenching from intercritical ( gamma + alpha ) temp. were studied. It was shown that steel 15 has an "island-type" dual-phase structure (ferrite plus martensite) after intercritical quenching, while the steel 15Mn2Nb...

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Bibliographic Details
Published in:Journal of materials science 1983-09, Vol.18 (9), p.2727-2731
Main Authors: Yang, De-Zhuang, Sun, Xue-Wen, Lei, Ting-Chuan
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals, semimetals and alloys
Other heat and thermomechanical treatments
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Specific materials
Treatment of materials and its effects on microstructure and properties
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Summary:The microstructure and tensile properties of steels 15 and 15Mn2Nb after quenching from intercritical ( gamma + alpha ) temp. were studied. It was shown that steel 15 has an "island-type" dual-phase structure (ferrite plus martensite) after intercritical quenching, while the steel 15Mn2Nb has the "lamellar" structure with alternatively arranged ferrite and martensite needles. Such a lamellar dual-phase structure obviously has improved strength and ductility and is suggested as one of the effective methods in developing high-strength dual-phase steels.--AA
ISSN:0022-2461
1573-4803
DOI:10.1007/BF00547589