Quantitative SAXS Analysis of Precipitate Characteristics Limiting Hot Ductility in HSLA Steels Containing V, Nb &amp; NbTi

Stubbers, Alyssa; Balk, T. John

doi:10.2355/isijinternational.isijint-2022-540

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…The calculation methodology for determining the integrated intensity Q 0 and the volume fraction of precipitates is detailed in Refs. [ 31 , 32 , 33 ]. The calculated values of Q 0 for samples 2T and 6T are 2.20 and 1.32, respectively.…”

Section: Resultsmentioning

confidence: 99%

Improving the Mechanical Properties of Hot Rolled Low-Carbon Copper-Containing Steel by Adjusting Quenching Roll Speed

Wang,

Chen,

Luo

et al. 2024

Materials

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This paper presents a comprehensive study of the impact of quenching roll speed on enhancing the low-temperature toughness of a low-carbon copper-containing steel. The microstructure characteristics, such as the prior austenite grains, and the distribution and volume fraction of precipitates, are observed using optical microscopy, scanning electron microscopy, transmission electron microscopy, and small-angle scattering X-ray. The results show that a decrease in the quenching roller speed (2 m/min) contributes to the achievement of more excellent low-temperature toughness (the average value is 232 J), although the prior austenite grains exhibit a relatively larger size in this case. The tempering treatment results in the precipitation of a large amount of 9R-type Cu-rich particles, regardless of the quenching roller speed. Reducing the quenching roller speed contributes to the increase in the volume fraction of Cu-rich particles, which is considered to be the main factor contributing to the achievement of excellent low-temperature toughness.

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Section: Resultsmentioning

confidence: 99%