Influence of carbon concentration and magnetic transition on the austenite lattice parameter of 30Mn-C steel

Tomota, Yō; Murakami, T.; Wang, Y.X.; Ohmura, Takahito; Harjo, Stefanus; Su, Yuhua; Shinohara, T.

doi:10.1016/j.matchar.2020.110243

Cited by 4 publications

(2 citation statements)

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“…[70] Both in situ and ex situ techniques are possible. Data collection time is more [52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][81][82][83][84][85][86][87][88][89][90][91][92][93] High resolving power Inability to distinguish different microstructures of same crystal structure Requires larger sample size than that of XRD.…”

Section: Villari Effectmentioning

confidence: 99%

“…[ 41 ] But in most of the cases, in situ measurements have been used to get the insight information of the amount of phases present in the sample during tensile tests. For the quantitative analysis of retained austenite in TRIP steel, neutron engineering diffractometers such as SALSA [ 88 ] and STRESS‐SPEC, [ 89 ] generating high‐energy neutron flux, are required and are available at large beam line facilities. However, new edge technologies such as compact accelerator‐based neutron source (CANS) [ 90 ] producing low‐energy neutrons provide an opportunity to use neutrons just like commercial X‐Ray amenities.…”

Section: Diffraction‐based Techniquesmentioning

confidence: 99%

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A Review on Measurement Techniques of Deformation‐Induced Transformation Kinetics in Transformation‐Induced Plasticity and Transformation‐Induced Plasticity‐Assisted Steels

Tiwari,

Varshney

2023

steel research int.

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Deformation‐induced austenite to martensite transformation is an important phenomenon that controls the flow behaviour of Transformation Induced Plasticity (TRIP) and TRIP‐assisted steels. Transformation kinetics and triggering strain are important parameters that need to be known during the transformation. Both these parameters can be correctly determined by an accurate quantitative assessment of the austenite during deformation. Various techniques have been employed for the quantitative assessment of the austenite by previous investigators. In this paper, both the in‐situ and ex‐situ measurement techniques used for quantitative assessment of austenite during/after tensile deformation of the TRIP and TRIP‐assisted steels are reviewed. A comparison of various techniques such as X‐ray diffraction, neutron diffraction, Mossbauer spectroscopy, and DC/AC magnetic permeability is presented. Due to the limited penetration power of the radiations, difficult access, and difficulty in setting up the measurement facility for the in‐situ measurements, X‐ray diffraction, neutron diffraction, and Mossbauer spectroscopy techniques do not yield accurate quantitative results and are time consuming. It is envisaged that an accurate quantitative assessment of austenite from the bulk of the TRIP and TRIP‐assisted steel specimens is possible with magnetic permeability measurement techniques. Real‐time quantitative assessments can be made by measuring changes in the magnetic permeability due to changes in the ferromagnetic content during deformation. Extensive calibration is required for the accurate measurement of the phases with the magnetic permeability measurements during the deformation of the steel.This article is protected by copyright. All rights reserved.

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