Acquiring High-Quality Oil Casing Steel 26CrMoVTiB under Optimal Continuous Casting Process Conditions
While the solidification macrostructure of continuous cast billets is an important factor influencing the final performance and rolling yield of oil casing steel, the continuous casting process parameters have a direct influence on the solidification structure. This study simulated the solidificatio...
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doaj-5e5fc47b55c2440890a31473571a1daa2020-11-25T01:01:40ZengMDPI AGMetals2075-47012019-09-019999310.3390/met9090993met9090993Acquiring High-Quality Oil Casing Steel 26CrMoVTiB under Optimal Continuous Casting Process ConditionsYingying Zhai0Kefeng Pan1Dapeng Wu2Computing Center, Northeastern University, Shenyang 110819, ChinaSchool of Metallurgy, Northeastern University, Shenyang 110819, ChinaCollege of Science, Liaoning Shihua University, Fushun 113001, ChinaWhile the solidification macrostructure of continuous cast billets is an important factor influencing the final performance and rolling yield of oil casing steel, the continuous casting process parameters have a direct influence on the solidification structure. This study simulated the solidification process of the continuous casting round billets of oil casing steel using a cellular automaton−finite element (CAFE) model. According to the simulation results, at a superheat degree of 20−35 K, a casting speed of 1.9−2.1 m/min, and a secondary cooling specific water flow of 0.34−0.45 L/Kg, the solidification structure had a relatively high equiaxed crystal ratio and small average grain radius. Guided by the simulation results, this paper establishes optimal process schemes for producing 26CrMoVTiB steel round billets, comparatively analyzes the equiaxed crystal ratio and central shrinkage of round billets produced according to these schemes, and defines the optimal continuous casting process conditions, which are: superheat degree = 25 K, casting speed = 2.1 m/min, and specific water flow = 0.35 L/Kg. When adopting these process parameters, the 26CrMoVTiB steel round billets demonstrate a tiny central shrinkage and an equiaxed crystal ratio of 45.2%.https://www.mdpi.com/2075-4701/9/9/993oil casing steel26CrMoVTiBcellular automaton–finite element modelcontinuous casting processoptimal process schemes |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yingying Zhai Kefeng Pan Dapeng Wu |
spellingShingle |
Yingying Zhai Kefeng Pan Dapeng Wu Acquiring High-Quality Oil Casing Steel 26CrMoVTiB under Optimal Continuous Casting Process Conditions Metals oil casing steel 26CrMoVTiB cellular automaton–finite element model continuous casting process optimal process schemes |
author_facet |
Yingying Zhai Kefeng Pan Dapeng Wu |
author_sort |
Yingying Zhai |
title |
Acquiring High-Quality Oil Casing Steel 26CrMoVTiB under Optimal Continuous Casting Process Conditions |
title_short |
Acquiring High-Quality Oil Casing Steel 26CrMoVTiB under Optimal Continuous Casting Process Conditions |
title_full |
Acquiring High-Quality Oil Casing Steel 26CrMoVTiB under Optimal Continuous Casting Process Conditions |
title_fullStr |
Acquiring High-Quality Oil Casing Steel 26CrMoVTiB under Optimal Continuous Casting Process Conditions |
title_full_unstemmed |
Acquiring High-Quality Oil Casing Steel 26CrMoVTiB under Optimal Continuous Casting Process Conditions |
title_sort |
acquiring high-quality oil casing steel 26crmovtib under optimal continuous casting process conditions |
publisher |
MDPI AG |
series |
Metals |
issn |
2075-4701 |
publishDate |
2019-09-01 |
description |
While the solidification macrostructure of continuous cast billets is an important factor influencing the final performance and rolling yield of oil casing steel, the continuous casting process parameters have a direct influence on the solidification structure. This study simulated the solidification process of the continuous casting round billets of oil casing steel using a cellular automaton−finite element (CAFE) model. According to the simulation results, at a superheat degree of 20−35 K, a casting speed of 1.9−2.1 m/min, and a secondary cooling specific water flow of 0.34−0.45 L/Kg, the solidification structure had a relatively high equiaxed crystal ratio and small average grain radius. Guided by the simulation results, this paper establishes optimal process schemes for producing 26CrMoVTiB steel round billets, comparatively analyzes the equiaxed crystal ratio and central shrinkage of round billets produced according to these schemes, and defines the optimal continuous casting process conditions, which are: superheat degree = 25 K, casting speed = 2.1 m/min, and specific water flow = 0.35 L/Kg. When adopting these process parameters, the 26CrMoVTiB steel round billets demonstrate a tiny central shrinkage and an equiaxed crystal ratio of 45.2%. |
topic |
oil casing steel 26CrMoVTiB cellular automaton–finite element model continuous casting process optimal process schemes |
url |
https://www.mdpi.com/2075-4701/9/9/993 |
work_keys_str_mv |
AT yingyingzhai acquiringhighqualityoilcasingsteel26crmovtibunderoptimalcontinuouscastingprocessconditions AT kefengpan acquiringhighqualityoilcasingsteel26crmovtibunderoptimalcontinuouscastingprocessconditions AT dapengwu acquiringhighqualityoilcasingsteel26crmovtibunderoptimalcontinuouscastingprocessconditions |
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1725207997135716352 |