IMR OpenIR
Fabrication of (TiB/Ti)-TiAl composites with a controlled laminated architecture and enhanced mechanical properties
Ding, Hao1; Cui, Xiping1; Gao, Naonao1; Sun, Yuan2; Zhang, Yuanyuan1; Huang, Lujun1; Geng, Lin1
Corresponding AuthorCui, Xiping(cuixiping@hit.edu.cn) ; Sun, Yuan(yuansun@imr.ac.cn)
2021-01-30
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume62Pages:221-233
AbstractThe (TiB/Ti)-TiAl composites with a laminated structure composing of alternating TiB/Ti composite layers, alpha(2)-Ti3Al interfacial reaction layers of and gamma-TiAl layers were successfully prepared by spark plasma sintering of alternately stacked TiB2/Ti powder layers and TiAl powder layers. And the influence of thickness ratio of TiB2/Ti powder layers to TiAl powder layers on microstructure evolution and mechanical properties of the resulting (TiB/Ti)-TiAl laminated composites were investigated systemically. The results showed that the thickening of alpha(2)-Ti3Al layers which originated from the reaction of Ti and TiAl was significantly hindered by introducing TiB2 particles into starting Ti powders. As the thickness ratio of TiB2/Ti powder layers to TiAl powder layers increased, the bending fracture strength and fracture toughness at room temperature of the final (TiB/Ti)-TiAl laminated composites were remarkably improved, especially for the (TiB/Ti)-TiAl composites prepared by TiB2/Ti powder layers with thickness of 800 mu m and TiAl powder layers with thickness of 400 mu m, whose fracture toughness and bending strength were up to 51.2 MPa.m(1/2) and 1456 MPa, respectively, 293 % and 108 % higher than that of the monolithic TiAl alloys in the present work. This was attributed to the addition of high-performance network TiB/Ti composite layers. Moreover, it was noteworthy that the ultimate tensile strength at 700 degrees C of (TiB/Ti)-TiAl composites fabricated by 400 mu m thick TiB2/Ti powder layers and 400 mu m thick TiAl powder layers was as high as that at 550 degrees C of network TiB/Ti composites. This means the service temperature of (TiB/Ti)-TiAl laminated composites was likely raised by 150 degrees C, meanwhile a good combination of high strength and high toughness at ambient temperature could be maintained. Finally, the fracture mechanism of (TiB/Ti)-TiAl laminated composites was proposed. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordTitanium aluminide matrix composites Laminated structure High temperature properties Strengthening-toughening
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.jmst.2020.06.011
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51971079] ; National Natural Science Foundation of China[51771064] ; National Natural Science Foundation of China[51401068]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000601221700022
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158814
Collection中国科学院金属研究所
Corresponding AuthorCui, Xiping; Sun, Yuan
Affiliation1.Harbin Inst Technol, Sch Mat Sci & Engn, POB 433, Harbin 150001, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Div Superalloys, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Ding, Hao,Cui, Xiping,Gao, Naonao,et al. Fabrication of (TiB/Ti)-TiAl composites with a controlled laminated architecture and enhanced mechanical properties[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,62:221-233.
APA Ding, Hao.,Cui, Xiping.,Gao, Naonao.,Sun, Yuan.,Zhang, Yuanyuan.,...&Geng, Lin.(2021).Fabrication of (TiB/Ti)-TiAl composites with a controlled laminated architecture and enhanced mechanical properties.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,62,221-233.
MLA Ding, Hao,et al."Fabrication of (TiB/Ti)-TiAl composites with a controlled laminated architecture and enhanced mechanical properties".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 62(2021):221-233.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Ding, Hao]'s Articles
[Cui, Xiping]'s Articles
[Gao, Naonao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ding, Hao]'s Articles
[Cui, Xiping]'s Articles
[Gao, Naonao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ding, Hao]'s Articles
[Cui, Xiping]'s Articles
[Gao, Naonao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.