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Impact toughness of friction stir processed low carbon steel used in shipbuilding
Sekban, DM; Aktarer, SM; Xue, P; Ma, ZY; Purcek, G; Purcek, G (reprint author), Karadeniz Tech Univ, Dept Mech Engn, Trabzon, Turkey.
2016-08-30
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume672Pages:40-48
AbstractEffect of single-pass friction stir processing (FSP) on the impact toughness of a low carbon steel mainly used in shipbuilding was investigated via Charpy impact test at different temperatures, and the results were correlated with the radical microstructural alterations during processing. A fine-grained (FG) microstructure was achieved in the processed zone by both large deformation and simultaneous dynamic recrystallization of coarse-grained (CG) structure during FSP. The grain size of ferritic phase decreased from 25 mu m down to about 3.0 mu m after processing. This microstructural changes brought about a considerable increase in strength values of the steel with a slight decrease in its ductility values. More importantly, significant refinement in the FSPed steel increased the impact energies in the upper shelf and partially lower shelf energy regions, and it considerably decreased the ductile-to-brittle transition temperature (OBIT) from -40 degrees C for the CG steel to about -65 degrees C for the FG steel. The improvement in the impact toughness of the steel was attributed mainly to the substantial microstructural refinement with grains separated mostly by high-angle grain boundaries. (C) 2016 Elsevier B.V. All rights reserved.
description.department[sekban, d. m.] karadeniz tech univ, dept naval architecture & marine engn, trabzon, turkey ; [aktarer, s. m.] recep tayyip erdogan univ, dept automot technol, rize, turkey ; [xue, p. ; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang, peoples r china ; [purcek, g.] karadeniz tech univ, dept mech engn, trabzon, turkey
KeywordFriction Stir Processing Low Carbon Steels Impact Toughness
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationThe World Academy of Sciences, Italy (TWAS) under the Visiting Researchers Program of TWAS-UNESCO Associateship Scheme [3240260896]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/76298
Collection中国科学院金属研究所
Corresponding AuthorPurcek, G (reprint author), Karadeniz Tech Univ, Dept Mech Engn, Trabzon, Turkey.
Recommended Citation
GB/T 7714
Sekban, DM,Aktarer, SM,Xue, P,et al. Impact toughness of friction stir processed low carbon steel used in shipbuilding[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,672:40-48.
APA Sekban, DM,Aktarer, SM,Xue, P,Ma, ZY,Purcek, G,&Purcek, G .(2016).Impact toughness of friction stir processed low carbon steel used in shipbuilding.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,672,40-48.
MLA Sekban, DM,et al."Impact toughness of friction stir processed low carbon steel used in shipbuilding".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 672(2016):40-48.
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