Analysis of Nano-hardness Distribution Near the Ferrite-martensite Interface in a Dual Phase Steel with Factorization of Its Scattering Behavior

Ando, Reon; Matsuno, Takashi; Matsuda, Tomoko; Yamashita, Norio; Yokota, Hideo; Goto, Kenta; Watanabe, Ikumu

doi:10.2355/isijinternational.isijint-2020-546

Cited by 4 publications

(3 citation statements)

References 20 publications

(26 reference statements)

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“…Consequently, to model the ferrite-pearlite composite structure accurately, it is imperative to assess local mechanical properties through microscopic material tests [17][18][19] . For example, a method for evaluating local mechanical properties by coupling microindentation tests with numerical simulations have been proposed 20,21) .…”

Section: Resultsmentioning

confidence: 99%

Multiscale Finite Element Analysis of Yield-point Phenomenon in Ferrite–Pearlite Duplex Steels

Yanagawa,

Watanabe

2024

ISIJ Int.

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The yield-point phenomena in ferrite-pearlite duplex steels were investigated using multiscale computational simulations. In these multiscale simulations, the stress-strain relationship of the ferrite phase was characterized by an elastoplastic constitutive model considering the stress-drop behavior, and its material constants were determined by minimizing the residual error between a computational simulation and a tensile test experiment, where the yield-point phenomenon in a tensile test of ferrite steel was reproduced. Using the determined material response of the ferrite phase, finite element analyses of the ferrite-pearlite duplex microstructure were executed to scrutinize both the macroscopic material response and microscopic deformation mechanisms. Subsequently, finite element analyses of tensile tests, based on numerical results from microstructural analyses, were carried out to replicate the yield-point phenomena in ferrite-pearlite duplex steels. Consequently, the study characterized the strengthening effect of the pearlite constituent while considering microscopic heterogeneity and yieldpoint phenomena in the ferrite phase. The findings from the multiscale simulations underscored the necessity for a more accurate estimation of local mechanical properties in both the ferrite phase and pearlite constituent for quantitative simulations.

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Section: Resultsmentioning

confidence: 99%

Multiscale Finite Element Analysis of Yield-point Phenomenon in Ferrite–Pearlite Duplex Steels

Yanagawa,

Watanabe

2024

ISIJ Int.

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“…Table 2 に Fig. 6 (17,18,19) による局所力学特性の評価が必要である。例えば，微小押し込み試験と数値シミュレーションを連携して局所力学特性を評価する手法 (20,21) が提案されており，応力降下を伴う応力-ひずみ関係へ拡張することで，上記の課題を解決できると期待される。…”

Section: つのひずみ成分に対応したマクロ微小ひずみモードを付与し，弾性接線係数を評価する。unclassified

“…Yield strength calculated with finite element analyses of Ferrite-Pearlite duplex microstructure and estimated with equation(17).…”

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confidence: 99%

Multiscale Finite Element Analysis of Yield-point Phenomenon in Ferrite–Pearlite Duplex Steels

Yanagawa,

Watanabe

2024

Tetsu-to-Hagane

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Effect of the anisotropy of martensitic transformation on ferrite deformation in Dual-Phase steels

et al. 2022

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Analysis of Nano-hardness Distribution Near the Ferrite-martensite Interface in a Dual Phase Steel with Factorization of Its Scattering Behavior

Cited by 4 publications

References 20 publications

Multiscale Finite Element Analysis of Yield-point Phenomenon in Ferrite–Pearlite Duplex Steels

Multiscale Finite Element Analysis of Yield-point Phenomenon in Ferrite–Pearlite Duplex Steels

Multiscale Finite Element Analysis of Yield-point Phenomenon in Ferrite–Pearlite Duplex Steels

Effect of the anisotropy of martensitic transformation on ferrite deformation in Dual-Phase steels

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