Microstructure and mechanical properties of TiC/Ti matrix composites and Ti–48Al–2Cr–2Nb alloy joints brazed with Ti–28Ni eutectic filler alloy

• Autorzy: Dong, Duo , Xu, Haitao , Zhu, Dongdong , Wang, Gang , He, Qing , Lin, Junpin
• Języki publikacji: EN

Abstrakty

EN

Ti–48Al–2Cr–2Nb and TiC/Ti matrix composites were successfully joined using Ti–28Ni eutectic filler metal at different brazing temperatures. Microstructure and mechanical properties of the joints were systematically studied. The results showed that the joints all showed integral interfaces and the microstructures of the joints for 980 8C/15 min were detected as Ti-48Al-2Cr-2Nb/a2-Ti3Al + t3-Al3NiTi2/a2-Ti3Al/Ti(s,s) + d-Ti2Ni + TiC/Ti matrix composites. As brazing temperature increased, continuous Ti2Ni layer diminish and Ti2Ni phase became more discrete. However, a2-Ti3Al rich layer has thickened which deteriorates the properties of the joints. The highest shear strength achieved 469.5 MPa as the joint brazed at 1010 8C for 15 min. The evolution of microstructures brazed with different tem-peratures was studied and its relationship with the shear strength was also revealed in details.

Słowa kluczowe

PL

stop TiAl; mikrostruktura; wytrzymałość na ścinanie

EN

TMCs; TiAl alloy; brazing; microstructure; shear strength

• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 4
• Strony: 1259--1267
• Opis fizyczny: Bibliogr. 31 poz., rys., tab., wykr.

Twórcy

autor

Dong, Duo

• State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 410083, PR China,
• Key Laboratory of Air-driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou 324000, PR China

autor

Xu, Haitao

• School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000, PR China

autor

Zhu, Dongdong

• Key Laboratory of Air-driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou 324000, PR China,

autor

Wang, Gang

• Key Laboratory of Air-driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou 324000, PR China

autor

He, Qing

• State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 410083, PR China

autor

Lin, Junpin

• State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 410083, PR China

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)

Identyfikatory

DOI

10.1016/j.acme.2019.07.005