Interactive Relationship between the Superheat, Interfacial Heat Transfer, Deposited Film and Microstructure in Strip Casting of Duplex Stainless Steel

Zhu, Chenyang; Wang, Wanlin; Zeng, Jie; Lu, Cheng; Zhou, Lejun; Chang, Jiang

doi:10.2355/isijinternational.isijint-2018-747

Cited by 19 publications

(2 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The droplet solidification tester was designed for simulating the subrapid solidification pertinent to the strip casting by impinging molten steel onto a water-cooled substrate. It was first developed at Carnegie Mellon University [14] and further upgraded at Central South University [16]. The schematic of the droplet solidification tester is shown in Figure 1a, which is mainly comprised of a heating system, ejection system, cooling system, and atmosphere control system.…”

Section: Experimental Apparatusmentioning

confidence: 99%

“…A steel strip with a thickness of 0.8-3 mm can be obtained for microstructure and properties examination. Cramb [14] built a droplet solidification tester in which molten steel directly drops onto a chill copper substrate to study factors affecting initial solidification behavior during strip casting, such as surface oxide films [14,15], superheat [16] and the roughness of substrate [17]. Few research studies went further to study related microstructure and pertinent thermal schemes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Simulation of Subrapid Solidification and Secondary Cooling for the Strip Casting of IF Steel

et al. 2021

Self Cite

View full text Add to dashboard Cite

A combination of droplet solidification tester and confocal laser scanning microscope was used to simulate subrapid solidification and secondary cooling process pertinent to the strip casting. The IF steel droplet had a delamination structure and the bottom part went through sub-rapid solidification. During secondary cooling, γ/α transformation mechanism belonged to interface-controlled massive transformation and the ferrite grains grew quickly. With the increase of cooling rate, the γ/α transformation temperature decreased and the incubation period and phase transformation duration reduced. The hardness showed a slight increase due to fine-grain strengthening. With coiling temperature increasing from 600 °C to 800 °C, the grain size became larger, precipitates became coarse, and defects in grain were recovered. Consequently, the hardness decreased.

show abstract

Section: Experimental Apparatusmentioning

confidence: 99%