Analysis of a New High-Toughness Ultra-high-Strength Martensitic Steel by Transmission Electron Microscopy and Atom Probe Tomography

Hartshorne, Matthew; Mccormick, C. J.; Schmidt, Michael; Novotny, Paul M.; Isheim, Dieter; Seidman, David N.; Taheri, Mitra L.

doi:10.1007/s11661-016-3325-x

Cited by 10 publications

(1 citation statement)

References 65 publications

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“…[1][2][3]. Although martensitic steels possess high strength and hardness, their toughness and plasticity are relatively poor [4,5]. In recent years, nanostructured bainitic steels have attracted considerable attention due to their extremely high strengths (~2.5 GPa) and much higher toughness as compared to martensitic steels [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Effects of Ni and Cr on Cryogenic Impact Toughness of Bainite/Martensite Multiphase Steels

Yao

Jiang

et al. 2019

Met. Mater. Int.

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In the present research, the effects of Nickel (Ni) and Chromium (Cr) on cryogenic impact toughness (CIT) of low-carbon bainite/martensite multiphase steels [processed by two different cooling processes: isothermal transformation process (ITP) and continuous cooling process (CCP)] were investigated. It was found that due to the formation of carbides during isothermal treatment, the addition of Ni and Cr yielded no significant improvements in CIT. However, during CCP treatment, the addition of Ni manifested a considerable enhancement in CIT, whereas the addition of both Ni and Cr caused a decrease in CIT. Further, after ITP treatment, the microstructure of all steels consisted of bainite and martenite, while Ni + Cr steel contained the largest amount of bainite. The microstructures of the CCP-treated steels mainly also consisted of bainite and martensite, but no retained austenite and carbides were observed, thus resulting in a superior CIT.

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Section: Introductionmentioning

confidence: 99%

Effects of Ni and Cr on Cryogenic Impact Toughness of Bainite/Martensite Multiphase Steels

Yao

Jiang

et al. 2019

Met. Mater. Int.

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Investigation on Microstructure and Properties of Low‐Carbon Wear‐Resistant Steels with Addition of Cr and Ni

Yao

Tian

Chen

et al. 2020

steel research int.

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The investigations on wear resistance, mechanical properties, and microstructure of three steels with different additions of chromium (Cr) and nickel (Ni) are conducted. Continuous cooling treatment is conducted to obtain martensitic/bainitic dual‐phase microstructure, and wear behavior is analyzed. The results indicate that Ni addition has no significant influence on the strength, hardness, and elongation but improves the low‐temperature impact toughness and reduces the weight loss due to the decrease in spalling wear. In addition, composite addition of Cr and Ni enhances strength, hardness, and elongation but decreases low‐temperature impact toughness. Although the weight loss of sample with the composite addition of Cr and Ni is small in the early stage of wear, the lower impact toughness results in the increase in chiseling wear, and the wear rate increases in the later stage of wear.

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Effect of Quenching Temperature on Microstructure and Mechanical Properties of Medium-Carbon Steel

Elshaer

Ibrahim

et al. 2021

Metallogr. Microstruct. Anal.

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Analysis of a New High-Toughness Ultra-high-Strength Martensitic Steel by Transmission Electron Microscopy and Atom Probe Tomography

Cited by 10 publications

References 65 publications

Effects of Ni and Cr on Cryogenic Impact Toughness of Bainite/Martensite Multiphase Steels

Effects of Ni and Cr on Cryogenic Impact Toughness of Bainite/Martensite Multiphase Steels

Investigation on Microstructure and Properties of Low‐Carbon Wear‐Resistant Steels with Addition of Cr and Ni

Effect of Quenching Temperature on Microstructure and Mechanical Properties of Medium-Carbon Steel

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