Results 1 to 10 of about 70 (61)

Effect of ausforming parameters on strain-induced phase transformation and isothermally transformed bainite

Journal of Materials Research and Technology, 2021
The presence of strain-induced phases formed in the course of ausforming step has been proven by thermodynamic calculation, microstructural observation and hardness examination, besides that, the effect of ausforming parameters on isothermally ...
Qiang Li
exaly   +3 more sources

Effects of ausforming temperature on bainite transformation kinetics, microstructures and mechanical properties in ultra-fine bainitic steel

Journal of Materials Research and Technology, 2020
The effects of ausforming temperature on bainite transformation kinetic and plastic deformation mechanism were evaluated by thermal simulation method and warm rolling process.
Hui Guo, Xianying Feng, Aimin Zhao
exaly   +3 more sources

Effect of ausforming on the bainitic transformation and microstructure in medium carbon V–N micro-alloyed steel

Journal of Materials Research and Technology, 2023
Ausforming at 900 °C with 30% reduction in V and N micro-alloyed steel could induce VN precipitation, which has low lattice misfit (1.8%) with bainitic ferrite in a particular crystal orientation.
Zhinan Yang
exaly   +3 more sources

Crystallographic characterization of steel microstructure using neutron diffraction [PDF]

Science and Technology of Advanced Materials, 2019
Applications of neutron diffraction to microstructure evaluation of steel investigated by a project commissioned by the Innovative Structural Materials Association are summarized.
Yo Tomota
doaj   +2 more sources

Bainite transformation behavior, microstructural feature and mechanical properties of nanostructured bainitic steel subjected to ausforming with different strain

Journal of Materials Research and Technology, 2020
The interplay between ausforming strain level applied prior to austempering step and bainite transformation kinetic as well as plastic deformation mechanism of nanostructured bainitic steel was essentially investigated.
Qiang Li, Yaping Fan, Xianying Feng
exaly   +3 more sources

Nanostructured bainite transformation characteristics in medium-carbon steel subjected to ausforming and isothermal holding below martensite start temperature

Journal of Materials Research and Technology, 2023
The influence of martensite on the transformation rate of bainite as well as enhancement of various properties is well established, yet the combined influence of both the primary martensite and low temperature ausforming below the martensite start ...
Pentti Kaikkonen, Sumit Ghosh, Mahesh Chandra Somani   +2 more
exaly   +3 more sources

The combining effects of ausforming and below-Ms or above-Ms austempering on the transformation kinetics, microstructure and mechanical properties of low-carbon bainitic steel

Materials and Design, 2019
The isothermal transformation kinetics, microstructure and mechanical properties of a low-carbon bainitic steel, subjected to below-Ms/above-Ms austempering with or without prior ausforming, have been investigated via dilatometric measurements ...
Leijie Zhao, Lihe Qian, Qⅰan Zhou
exaly   +3 more sources

Effect of ausforming on microstructure and hardness characteristics of bainitic steel

Journal of Materials Research and Technology, 2020
Effects of process parameters of the ausforming such as temperature, strain and strain rate on the martensitic start temperature, kinetics of isothermal bainitic transformation and microstructure refinement of a low carbon carbide-free bainitic steel ...
Theerawat Kumnorkaew, Junhe Lian, Vitoon Uthaisangsuk   +2 more
exaly   +3 more sources

Ultrafine bainitic steel produced through ausforming-quenching process

Journal of Materials Research and Technology, 2020
The coupling effects of ausforming and quenching process on isothermal bainite transformation behaviors, microstructures and mechanical properties of ultrafine bainitic steel have been analyzed.
Hao Guo
exaly   +3 more sources

Microstructure Refinement by Low-Temperature Ausforming in an Fe-Based Metastable High-Entropy Alloy

Metals, 2021
The effects of ausforming in an Fe30Mn10Cr10Co high-entropy alloy on the microstructure, hardness, and plastic anisotropy were investigated. The alloy showed a dual-phase microstructure consisting of face-centered cubic (FCC) austenite and hexagonal ...
Motomichi Koyama, Takeaki Gondo, Kaneaki Tsuzaki   +2 more
doaj   +1 more source