Full-field X-ray Nano-scope Developed at SSRF

Deng, Bangming; Yudan,; Wang, Yuqi Ren; Sun, Tao; Guang-zhao,; Du, Zhou Guohao; Fang, Tao; Xie, Honglan; Xiao, Tiqiao

doi:10.1017/s143192761800555x

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…In the SADP, not only the fundamental austenite spots, but also super‐lattice reflections of ordered phase are clearly visible, such as (110) spot. The similar intensity of diffraction spots observed for ordered phase can be demonstrated to the L′1 2 ordered precipitates also called κ‐carbides …”

Section: Resultssupporting

confidence: 67%

Compression Deformation Behavior of a Fe–26Mn–7Al–1.3C Austenitic Steel after Precipitation‐Hardened Treatment

Feng

Song

Liu

et al. 2019

steel research int.

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Room temperature compression deformation behavior of a Fe–26Mn–7Al–1.3C austenitic steel in association with deformation microstructures is investigated in the article. After isothermal annealing at 550 °C for 2 h, a substantial nano‐sized κ‐carbides are precipitated within the austenite matrix. The precipitation‐hardened steel obtains an excellent combination of yield strength and toughness (product over 97 000 MPa J cm−2) associated with multiple‐stage strain hardening. In order to clarify the chief deformation mechanism, deformation microstructures are analyzed at different strain levels by means of transmission electron microscopy (TEM). TEM results show that the deformation microstructures exhibit the typical planar glide characteristics due to “glide plane softening” effect in spite of the high SFE (≈72 mJ m−2) for current steel. Some specific planar dislocation configurations including Taylor lattices and micro‐bands are contributed to high constant strain hardening rate. However, at high strain, intersections of highly localized nature micro‐bands decrease the formation activity of slip bands, meanwhile, the interaction between κ‐carbides and dislocation cross‐slip becomes more intensive, which results in a decrease in the growth rate of dislocations due to the frequency of dislocation annihilation.

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Section: Resultssupporting

confidence: 67%

Compression Deformation Behavior of a Fe–26Mn–7Al–1.3C Austenitic Steel after Precipitation‐Hardened Treatment

Feng

Song

Liu

et al. 2019

steel research int.

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“…Based the monocapillary, a full Field Transmission X-ray Microscopes(TXM) System was designed and constructed at SSRF. The spatial resolution of 100 nm was achieved by utilizing the monocapillary condenser [4,5], which indicating the ellipsoidal monocapillary had high quality and could meet the requirement of X-ray nano-imaging. In the future, a new monocapillary will be fabricated for and used as condenser in SSRF TXM bemline for 20nm TXM.…”

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confidence: 99%

Full-field X-ray Nano-scope Developed at SSRF

et al. 2018

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“…studied the microstructure and mechanical properties of Fe-30Mn-8.5Al-2.0C after aging at 550 ℃ for 0~7 h, and found that with the increase of the aging time, intragranular κ-carbides precipitated first and then transformed to intergranular κ-carbides. Feng et al [11]. studied the impact toughness and tensile properties of Fe-24.8Mn-7.3Al-1.2C aged at 550 °C for 0~13 h, and found that the best combination of impact toughness and strength could be obtained after aging for 1 h. Most of the previous studies have studied the precipitation process of κ-carbides and its effect on mechanical properties by aging at a certain temperature for different times.…”

Section: Introductionmentioning

confidence: 99%

Effect of Aging Treatment on the Microstructure and Mechanical Properties of Fe-Mn-Al-C Low Density Steel

Kong

Liu

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Fe-Mn-Al-C steel has excellent weight reduction potential. In this study, the microstructure and mechanical properties of Fe-25Mn-11Al-1.0C steel after solution treatment at 1050 °C and aging at 450~650 °C are studied. The results show that with the increase of aging temperature, the strength increases first and then decreases. The plasticity and strength show a trade-off relationship. With the increase of the aging temperature, the plasticity first decreases and then increases. The above-mentioned changes in mechanical properties are closely related to the changes in the morphology and distribution of κ-carbides during the aging process. In general, the precipitation of κ-carbides is beneficial to obtain higher strength, but has a detrimental effect on plasticity.

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Full-field X-ray Nano-scope Developed at SSRF

Cited by 3 publications

References 3 publications

Compression Deformation Behavior of a Fe–26Mn–7Al–1.3C Austenitic Steel after Precipitation‐Hardened Treatment

Compression Deformation Behavior of a Fe–26Mn–7Al–1.3C Austenitic Steel after Precipitation‐Hardened Treatment

Full-field X-ray Nano-scope Developed at SSRF

Effect of Aging Treatment on the Microstructure and Mechanical Properties of Fe-Mn-Al-C Low Density Steel

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