Influence of High-pressure Quenching on the Microstructure, Martensite Transformation, and Mechanical Properties of 0.2 Mass% C Steel
نویسندگان
چکیده
Low-carbon steel (0.2 mass%) samples were austenitized and quenched at a cooling rate of 10°C/s under GPa level high pressure. The morphology, lattice constant, order degree C atom distribution high-pressure quenching martensite characterised analyzed by TEM, EBSD, XRD, Mössbauer. Besides, the transformation characteristics strengthening mechanisms discussed. results show that microstructure 0.2 mass% is fine hierarchical lath with almost no residual austenite, its laths mostly follow {112} <111> twin relationship, indicating self-accommodation effect among variants. Compared to atmospheric pressure, carbon increases in martensite, meanwhile tetragonality (c/a) from 1.009 pressure 1.012 4 GPa. significant promotion hardness subjected treatment can be ascribed large number dislocations structure, grain refinement caused boundary, solution distortion due increase for decrease constant. These findings provide new insights into mechanism, technique developed.
منابع مشابه
Influence of Cu and Ni on the Microstructure and Mechanical Properties of an HSLA Steel
In this research the role of alloying elements on the microstructure and mechanical properties of an as cast and hot rolled high strength low alloy (HSLA) steel was studied. Different compositions with different amount of copper in the presence of nickel, hot rolled and quenched in oil. Tensile test, hardness test, scanning electron microscope (SEM) and optical microscope (OM) were used to eval...
متن کاملInfluence of Tempering on the Microstructure & Properties of Martensite and Bainite developed in a Low-C High-Si Steel
Martensitic and bainitic steels are two types of widely used steels with excellent mechanical behaviors in automatic industry. It’s universally acknowledged that asquenched martensite possesses poor ductility and impact toughness, which should be tempered before putting into application. During tempering, as-quenched martensite changes from a hard and brittle microstructure to more ductile and ...
متن کاملInfluence of Rolling on Microstructure and Mechanical Properties of Bronze-Steel Explosive Welded Sheets
In this paper, the microstructure and mechanical properties of the plain carbon steel-bronze interface of explosive welding and rolling were investigated. Explosive connection was done at two stop distances and with two different thicknesses of explosive material. Rolling of the welded composite was done at both ambient and preheated temperatures of 300 °C and with a constant thickness reductio...
متن کاملInfluence of Rolling on Microstructure and Mechanical Properties of Bronze-Steel Explosive Welded Sheets
In this paper, the microstructure and mechanical properties of the plain carbon steel-bronze interface of explosive welding and rolling were investigated. Explosive connection was done at two stop distances and with two different thicknesses of explosive material. Rolling of the welded composite was done at both ambient and preheated temperatures of 300 °C and with a constant thickness reductio...
متن کاملThe Influence of Homogenization and Solution Annealing Process on the Microstructure and Mechanical Properties of 1.4470 Ferritic-austenitic Stainless Steel
In the present research, the effect of the homogenization process and annealing temperature were investigated for the 1.4470 ferritic-austenitic stainless steel in the as-cast condition. In this regard, microstructural evolutions, hardness, and impact energy of the steel was evaluated with different heat treatment conditions. The results show that the minimum volume fraction of austenite phase ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Isij International
سال: 2021
ISSN: ['0915-1559', '1347-5460']
DOI: https://doi.org/10.2355/isijinternational.isijint-2020-784