Crystallographic analysis of lenticular martensite in Fe–1.0C–17Cr stainless steel by electron backscatter diffraction

Chang, Ya-Ling; Chen, P.Y.; Tsai, Yu-Ting; Yang, Jer−Ren

doi:10.1016/j.matchar.2015.12.022

Cited by 13 publications

(3 citation statements)

References 26 publications

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“…This issue was apparently involved with plastic deformation in the austenite to accommodate the shape strain of martensite during the course of transformation. 41 It is not the objective of the present research to further study this related aspect, and hereafter, the K–S OR is employed. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Investigation of idiomorphic ferrite and allotriomorphic ferrite using electron backscatter diffraction technique

Chi

Tsai

Huang

et al. 2017

Materials Science and Technology

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A heat treatment for a vanadium-containing steel involving high-temperature austenitisation followed by two-stage isothermal holding was deliberately conducted to produce allotriomorphic ferrite (ALF), idiomorphic ferrite (IDF) and martensite. The resulting microstructures and crystallographic relationships with respect to the parent austenite grains were examined using the electron backscatter diffraction technique. Results indicated that IDF grains did not possess a specific orientation relationship (OR) with respect to the surrounding austenite matrix. The detailed substructures of IDF were also examined. In contrast, the ALF grains had an approximate Kurdjumov–Sachs OR with respect to one or both of the adjacent austenite grains; the latter case was termed a dual OR and was analysed in detail.

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Section: Resultsmentioning

confidence: 99%

Investigation of idiomorphic ferrite and allotriomorphic ferrite using electron backscatter diffraction technique

Chi

Tsai

Huang

et al. 2017

Materials Science and Technology

Self Cite

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“…The optimum C2 aperture was chosen such that the convergence angle (2α) was about 33 mrad and the probe size was around 1 nm. The convergence condition was the same as that in a previous study (Chang, Chen, Tsai, & Yang, ).…”

Section: Methodsmentioning

confidence: 99%

The application of convergent beam electron diffraction (CBED) analysis on transformation‐induced plasticity (TRIP) steels

Tsai

et al. 2018

Microscopy Res & Technique

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Convergent beam electron diffraction (CBED) in transmission electron microscopy (TEM) was applied to determine local carbon concentrations in low-carbon transformation-induced plasticity (TRIP) steels. High-order Laue-zone (HOLZ) lines were experimentally obtained for comparison with simulation results. A new procedure for calculating carbon content is thus proposed. Retained austenite (RA) is classified into three types by morphology; the relationship between the carbon content and the corresponding RA morphology is discussed based on CBED results. Furthermore, results of X-Ray diffractometry measurements are also used for comparison.

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“…In addition, the hardness of (FeCr) 3 C and Cr 7 C 3 was higher than that of Fe 3 C, which was more likely to bring uneven slip or microcracks in the surrounding. Due to the different slip coefficients of the crystal grains in different directions, the slip could not be extended over one direction and the displacement of the crystal grains was accumulated at the front of the grain boundary, resulting in high stress concentration and subsequently leaving a tortuous area of deformation on the specimen surface [21,22]. It should be noted that the largest size of crack of samples was measured about 3.43, 3.64, 8.33 µm achieved with the tempering temperatures of 180, 400, and 620 • C, respectively.…”

Section: Tensile Strengthmentioning

confidence: 99%

Effect of Tempering Temperatures on Tensile Properties and Rotary Bending Fatigue Behaviors of 17Cr2Ni2MoVNb Steel

Qu¹,

Zhang²,

Lai³

et al. 2018

Metals

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Abstract:With the rapid development of the automotive industry in China, the common gear steels no longer meet the high speed and heavy load requirements of the automotive industry. 17Cr2Ni2MoVNb steel is a new type of gear steel in the automotive industry, but the mechanical properties of 17Cr2Ni2MoVNb are not well documented. In this study, the tensile properties and rotary bending fatigue behaviors of 17Cr2Ni2MoVNb were investigated, (quenched at 860 • C and tempered at 180, 400, 620 • C); the microstructures and fracture surface were analyzed using an optical microscope, scanning electron microscopy and transmission electron microscopy. The results show that at higher tempering temperatures, the tissue was denser, and the residual austenite transformed into lower bainite or tempered martensite. Dislocation density reduced while tempering temperature increased. Moreover, the samples with a tempering temperature of 180 • C exhibited the highest tensile strength of 1456 MPa, in addition to fatigue limits of 730, 700 and 600 MPa at temperatures of 180, 400, and 620 • C, respectively.

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Crystallographic analysis of lenticular martensite in Fe–1.0C–17Cr stainless steel by electron backscatter diffraction

Cited by 13 publications

References 26 publications

Investigation of idiomorphic ferrite and allotriomorphic ferrite using electron backscatter diffraction technique

Investigation of idiomorphic ferrite and allotriomorphic ferrite using electron backscatter diffraction technique

The application of convergent beam electron diffraction (CBED) analysis on transformation‐induced plasticity (TRIP) steels

Effect of Tempering Temperatures on Tensile Properties and Rotary Bending Fatigue Behaviors of 17Cr2Ni2MoVNb Steel

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