Effect of Aluminum on Microstructure of HP40 Steel

Liu, Zhiyuan; La, Peiqing; Zeng, Li; Wang, Weiguo; Xue, Huijun; Yuan, Hao

doi:10.1016/s1006-706x(08)60114-4

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…However, the microstructure of lower Al steel is mainly composed of α -ferrite. Liu et al 8 reported that the matrix of HP40 steels transformed from γ -Fe to α -Fe phase and then from α -Fe to (Fe, Ni) Al phase with increasing Al content. The addition of Al to steel leads to an increase in non-metallic inclusions, especially Al 2 O 3 and AlN 9.…”

Section: Introductionmentioning

confidence: 99%

Effect of Al on microstructure and impact property of surfacing repair layer of rail

Gou

Liu

et al. 2012

Surface Engineering

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Failed rail can be repaired using self-shielded flux cored wire. Aluminium powder is always added to the flux cored wire to protect the weld pool. However, the Al content affects the microstructure and property of the surfacing layer significantly. Therefore, the microstructure and impact property of the surfacing layer of the rail with different Al contents were analysed. Meanwhile, the formation mechanism of the inclusions was calculated by thermodynamic method. The results show that the pore sensitivity of the surfacing layer is high when the Al content is ,0?79 wt-%. The impact energy decreases with the increase in Al content. The thermodynamic calculated results show that the inclusion in the surfacing layer is AlN when the Al content is .1?89 wt-%. In contrast, they are mainly Al 2 O 3 when the Al content is ,1?45 wt-%. The thermodynamic calculated results are well agreed with the experimental ones.

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Section: Introductionmentioning

confidence: 99%

Effect of Al on microstructure and impact property of surfacing repair layer of rail

Gou

Liu

et al. 2012

Surface Engineering

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High-temperature Deformation Behavior of HP40Nb Micro-alloyed Reformer Steel

Ghatak

Robi

2015

Metallogr. Microstruct. Anal.

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The Mechanism of Oxide Growth on Pure Aluminum in Ultra-High-Temperature Steam

Huang

Xiong

et al. 2022

Metals

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A high-temperature water steam (H2O(g)) between 300 °C and 1000 °C reacted with the Al surface in this study. The Al surface states were characterized and analyzed using XRD °C, XPS, and SEM after and before the reaction, and the effects and mechanism of H2O(g) on the Al surface morphology and chemical composition were studied. The experiment showed that for an Al sheet reacting with H2O(g), its oxide layer morphology changed from nano-needle to flaky and granular oxides gradually with the rise of temperature, and finally the Al surface became porous as a whole. Its oxide crystals were amorphous and were determined to be aluminum oxide (Al2O3) using XPS. The needle-like oxide in the Al sheet surface tended to grow toward the surface, and no obviously inward oxidizing corrosion layer occurred in the aluminum substrate; the oxide layer between the oxide and Al sheet substrate was compact, and could effectively prevent the infiltration and corrosion of water molecules.

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Effect of Aluminum on Microstructure of HP40 Steel

Cited by 3 publications

References 9 publications

Effect of Al on microstructure and impact property of surfacing repair layer of rail

Effect of Al on microstructure and impact property of surfacing repair layer of rail

High-temperature Deformation Behavior of HP40Nb Micro-alloyed Reformer Steel

The Mechanism of Oxide Growth on Pure Aluminum in Ultra-High-Temperature Steam

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