Microstructural Evolution and Ductile-to-Brittle Transition in a Low-Carbon MnCrMoNiCu Heavy Plate Steel

doi:10.1007/s11661-018-4823-9

	Microstructural Evolution and Ductile-to-Brittle Transition in a Low-Carbon MnCrMoNiCu Heavy Plate Steel
	Liu, Dongsheng 1; Luo, Mi 1; Cheng, Binggui 1; Cao, Rui2,3 ; Chen, Jianhong2,3
	2018-10
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
卷号	49A 期号:10 页码:4918-4936
摘要	Low carbon MnCrMoNiCu alloyed steels are typically used to produce highly ductile thick plates for offshore structures and bulk shipbuilding. The current study revealed how microscopic factors affect the toughness and the occurrence of cleavage fracture of the steel. In this regard, a series of thermal treatments was performed on the test steel by employing a thermomechanical simulator. These involved reheating samples at different temperatures (1168 K to 1623 K (895 degrees C to 1350 degrees C)) producing different prior austenite grain sizes, followed by a continuous cooling transformation process. The Charpy V notch (CVN) toughness was determined, and the effect of the austenite grain size on the ductile-brittle transition-temperatures of the steel was investigated. The microstructural evolution of the austenite grain sizes was studied, fracture features were characterized, the critical event for cleavage fracture was identified, and the local cleavage fracture stress sigma(f) was calculated. The CVN toughness and sigma(f) were maximized in the steel which was reheated at 1273 K (1000 degrees C) and containing refined lathlike bainite. (C) The Minerals, Metals & Materials Society and ASM International 2018
关键词	Aluminum sheet Austenite Bainitic transformations Chromium alloys Chromium metallography Chromium metallurgy Chromium steel Copper alloys Copper metallography Ductility Fracture Grain size and shape Manganese alloys Manganese metallography Manganese steel Microstructural evolution Molybdenum alloys Molybdenum metallography Molybdenum steel Nickel metallography Nickel metallurgy Nickel steel Offshore oil well production Offshore structures Plates (structural components) Steel metallurgy Vanadium steel Austenite grain size Cleavage fracture Continuous cooling transformation Ductile to brittle transitions Fracture feature Heavy plate steels Prior austenite grain size Thermomechanical simulator
DOI	10.1007/s11661-018-4823-9
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000443469700052
出版者	SPRINGER
EI入藏号	20182905568109
EI主题词	Low carbon steel
EI分类号	408.2 Structural Members and Shapes - 511.1 Oil Field Production Operations - 531.1 Metallurgy - 531.2 Metallography - 535.1 Metal Rolling - 543 Chromium, Manganese, Molybdenum, Tantalum, Tungsten, Vanadium and Alloys - 544.2 Copper Alloys - 545.3 Steel - 674.2 Marine Drilling Rigs and Platforms - 951 Materials Science
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/32420
专题	材料科学与工程学院材料科学与工程学院_特聘教授组
通讯作者	Liu, Dongsheng
作者单位	1.Jiangsu Shagang Grp Co Ltd, Inst Res Iron & Steel, Zhangjiagang 215625, Jiangsu, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Gansu Adv Proc & Recycling Nonferro, Lanzhou 730050, Gansu, Peoples R China; 3.Lanzhou Univ Technol, Minist Educ, Key Lab Nonferrous Met Alloys, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Dongsheng,Luo, Mi,Cheng, Binggui,et al. Microstructural Evolution and Ductile-to-Brittle Transition in a Low-Carbon MnCrMoNiCu Heavy Plate Steel[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2018,49A(10):4918-4936.
APA	Liu, Dongsheng,Luo, Mi,Cheng, Binggui,Cao, Rui,&Chen, Jianhong.(2018).Microstructural Evolution and Ductile-to-Brittle Transition in a Low-Carbon MnCrMoNiCu Heavy Plate Steel.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,49A(10),4918-4936.
MLA	Liu, Dongsheng,et al."Microstructural Evolution and Ductile-to-Brittle Transition in a Low-Carbon MnCrMoNiCu Heavy Plate Steel".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 49A.10(2018):4918-4936.

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