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Annealing Treatment and Basketweave Structure Deformation Mechanism of Laser Deposition Manufactured TA15 Titanium Alloy
Alternative TitleAnnealing Treatment and Basketweave Structure Deformation Mechanism of Laser Deposition Manufactured TA15 Titanium Alloy
Yang Guang; Wang Wendong; Qin Lanyun; Ren Yuhang; Li Changfu; Wang Wei
2017
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume46Issue:7Pages:1935-1942
AbstractTA15 titanium alloy bulk specimens were prepared by laser deposition manufacturing with spherical TA15 powder as starting material. The effects of alpha+beta phase zone annealing treatment on microstructure and mechanical properties of laser deposition manufactured TA15 titanium alloy were studied by optical microstructure (OM) and scanning electron microscopy (SEM). Furthermore, the lamellar deformation mechanism was also discussed. The results indicate that microstructure is basketweave structure or near basketweave structure after alpha+beta phase zone annealing treatment; pattern and size of a phase is affected effectively by annealing temperature. The mechanical properties after annealing still show the anisotropy in different directions: the strength is low and the plasticity is high in deposition direction while the strength is high and the plasticity is low in vertical deposition direction. The interlayer binding zone slip deformation plays a vanguard role and the columnar crystal grain boundary has a bound effect on a phase slip deformation. Microhardness is affected by the amount of a phase while it changes little with the increase of annealing temperature. a lamellar in basketweave structure under the stress changes from near orthogonal to near parallel to the direction of stress, and staggered arrangement of a lamellar generates resistance between each other when it is in the state of slip deformation. Both deposition direction and vertical deposition direction have same tensile fracture modes which is ductile fracture after alpha+beta phase zone annealing treatment.
KeywordHEAT-TREATMENT MICROSTRUCTURE TEMPERATURES laser deposition manufacturing alpha plus beta phase zone annealing treatment microstructure mechanical properties
Indexed ByCSCD
Language英语
CSCD IDCSCD:6039523
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/148276
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Yang Guang,Wang Wendong,Qin Lanyun,et al. Annealing Treatment and Basketweave Structure Deformation Mechanism of Laser Deposition Manufactured TA15 Titanium Alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2017,46(7):1935-1942.
APA Yang Guang,Wang Wendong,Qin Lanyun,Ren Yuhang,Li Changfu,&Wang Wei.(2017).Annealing Treatment and Basketweave Structure Deformation Mechanism of Laser Deposition Manufactured TA15 Titanium Alloy.RARE METAL MATERIALS AND ENGINEERING,46(7),1935-1942.
MLA Yang Guang,et al."Annealing Treatment and Basketweave Structure Deformation Mechanism of Laser Deposition Manufactured TA15 Titanium Alloy".RARE METAL MATERIALS AND ENGINEERING 46.7(2017):1935-1942.
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