Titanium effect on the microstructure and properties of laminated high boron steel plates

High-boron steel is an important material used for thermal neutron shielding. The appropriate amount of added boron must be de- termined because excessive boron may deteriorate the steel＇s workability. A uniform microstructure can be formed by adding titanium to boron steel. In this study, casting a...

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Bibliographic Details
Published in:International journal of minerals, metallurgy and materials metallurgy and materials, 2015-05, Vol.22 (5), p.492-499
Main Authors: Yuan, Lin-lin, Han, Jing-tao, Liu, Jing, Wei, Dong-bin, Abathun, Mehari Zelalem
Format: Article
Language:English
Subjects:
Boron
Boron steels
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Corrosion and Coatings
Elongation
Glass
Heat treatment
Hot rolling
Materials Science
Metallic Materials
Microstructure
Natural Materials
Plates
Steel
Steel plates
Steels
Surfaces and Interfaces
Tensile strength
Thermal neutrons
Thin Films
Titanium
Tribology
Workability
中子屏蔽
层叠
微结构
热处理工艺
特性
钛含量
钢板
高硼钢
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Summary:High-boron steel is an important material used for thermal neutron shielding. The appropriate amount of added boron must be de- termined because excessive boron may deteriorate the steel＇s workability. A uniform microstructure can be formed by adding titanium to boron steel. In this study, casting and hot rolling were used to fabricate laminated high-boron steel plates whose cores contained 2.25wt% boron and 0wt%-7.9wt% titanium. The effects of titanium content and hot-rolling and heat-treatment processes on the microstructure and properties of the laminated plates were studied. The results indicated that the optimum titanium content was 5.7wt% when the boron content was 2.25wt%, and that the best overall properties were obtained after heat treatment at 1100℃ for 4 h. The tensile strength, yield strength, and elongation at the specified temperature and holding time were as high as 526.88 MPa, 219.36 MPa, and 29%, respectively.
ISSN:1674-4799
1869-103X
DOI:10.1007/s12613-015-1098-7