Premium
Structural studies in some extra low‐carbon manganese‐silicon and manganese‐silicon‐niobium high strength steels
Author(s) -
Patwardhan Arun Kumar
Publication year - 1979
Publication title -
archiv für das eisenhüttenwesen
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0003-8962
DOI - 10.1002/srin.197904785
Subject(s) - lath , materials science , manganese , ferrite (magnet) , metallurgy , microstructure , acicular ferrite , silicon , austenite , niobium , crystallography , martensite , composite material , chemistry , bainite
Examination of the transformation behaviour of extra low‐carbon Fe‐Mn‐Si and Fe‐Mn‐Si‐Nb steels with special reference to their ability to form shear transformation structure. Observation of mainly three types of microstructure: 1. aggregate of polygonal ferrite and shear transformation structure, 2. massive or high dislocation density ferrite and 3. non‐polygonal shear transformation structure, which can be most appropriately described as „lath like“ or simply lath structure. Attainment of a proof strength of ∼ 770 MN/m 2 to ∼ 1100 MN/m 2 with good ductility and toughness for steels with „lath“ structure. Identification and assessment of relative contributions of different microstructural features to the attainment of useful mechanical properties in steels based on „lath“ structure.