Surface Quality of Stainless Steel Type 304 Cast by Twin-roll Type Strip Caster.

Yasunaka, Hiroyuki; Taniguchi, Kazuyuki; Kokita, Masahiko; Inoue, Takeshi

doi:10.2355/isijinternational.35.784

Cited by 44 publications

(14 citation statements)

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“…This leads to a uniform contact time of the strip across the entire roll width which is necessary to produce even solidification. [3][4][5] A high regeneration rate at the top of the pool is also required even though forced convection in the pool produces low temperature gradients in the bulk liquid, 6,7) because zones of solidified metal-skulls-may form at the surface. 8) These may be a serious source of perturbation in the process leading to numerous defects in the strip.…”

Section: Introductionmentioning

confidence: 99%

Water Modeling Evaluation of Metal Delivery in a Twin Roll Strip Caster Using Pool Level and Residence Time Distribution Measurements.

et al. 2001

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A quantitative methodology that uses a water model to evaluate fluid flow of delivery systems under various operating conditions in the pool of a twin roll strip caster is presented. The measurements of two parameters are involved: level fluctuations of the pool and residence time distribution (RTD) of the fluid near the free surface. It is shown that a nozzle geometry that produces small level fluctuations and short residence times can be identified.

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Section: Introductionmentioning

confidence: 99%

Water Modeling Evaluation of Metal Delivery in a Twin Roll Strip Caster Using Pool Level and Residence Time Distribution Measurements.

et al. 2001

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“…[2][3][4][5] In fact, the steel industry is quite enthusiastic about strip casting and several R&D efforts are currently under way to produce steels with high solute contents such as stainless steels by strip casting. [6][7][8][9][10][11] However, the application of strip casting in non-ferrous alloys such as Al and Mg alloys is largely limited to alloys with low solute contents. [12][13][14] Recently, attempts have been made to fabricate the highly alloyed Al-6Fe-1V-2Si alloy by strip casting using a singleroll caster.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Strip Cast Al-Mg-Si-X Alloys

2003

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A study has been conducted on the microstructure and mechanical properties of strip cast Al6061 alloy with and without a 0.5 mass% Mn addition. The microstructures of the as-cast alloys are characterized by the presence of Si particles (<1 mm) and clusters of fine -AlFeSi particles (<50 nm) along grain boundaries. In addition, there is the development of well-defined subgrains caused by the effects of hot rolling during strip casting. By T6 heat treatment, Si particles along grain boundaries are replaced by fine -AlFeSi particles. There is also a formation of -AlFeSi particles within the Al matrix by heat treatment. The addition of Mn results in an increase in the volume fraction of -AlFe(Mn)Si particles within the Al matrix, which is associated with a corresponding decrease in the volume fraction of Mg 2 Si precipitates within the Al matrix over that observed in the base alloy. Accordingly, the Mn containing alloy shows a lower yield strength but a higher ultimate tensile strength due to a greater work hardening rate than the base alloy. The increased work hardening rate of the Mn containing alloy is due to the presence of uniformly distributed fine -AlFe(Mn)Si particles within the Al matrix. The present study shows that strip casting is a viable process for the fabrication of structural Al alloys.

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“…Previous investigations (Mizoguchi and Miyazawa, 1995;Santos et al, 2000) indicated that the solidification structure of twin-roll thin strip, especially the crystal zone proportion, has obvious effect on the thin strip quality. Yasunaka et al (1995) and Yang et al (2005) when the columnar crystal zone proportion in the solidification structure of twin-roll thin strips was less than seventy percent, the surface cracks would appear. But up to now, the information about the forming mechanism of solidification structure zone for twin-roll thin strips, especially about the forming mechanism of equiaxed crystal zone, is scarce in the literature.…”

Section: Introductionmentioning

confidence: 95%

Analysis about forming mechanism of equiaxed crystal zone for 1Cr18Ni9Ti stainless steel twin-roll thin strip

Yang

Pan

2009

Journal of Materials Processing Technology

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Surface Quality of Stainless Steel Type 304 Cast by Twin-roll Type Strip Caster.

Cited by 44 publications

References 0 publications

Water Modeling Evaluation of Metal Delivery in a Twin Roll Strip Caster Using Pool Level and Residence Time Distribution Measurements.

Water Modeling Evaluation of Metal Delivery in a Twin Roll Strip Caster Using Pool Level and Residence Time Distribution Measurements.

Microstructure and Mechanical Properties of Strip Cast Al-Mg-Si-X Alloys

Analysis about forming mechanism of equiaxed crystal zone for 1Cr18Ni9Ti stainless steel twin-roll thin strip

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