Structural response of A286 superalloy to rotary friction welding at different rotation speed

Rotary friction welding was conducted on A286 with a diameter of ϕ 25 mm under 300, 900 and 2100 rpm to understand the structural response of the joint welded at different rotation speeds. Joint morphologies, grain structures inside the morphologies and the corresponding mechanism that governs its f...

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Main Authors: Feng Jin, Jinglong Li, Dan Chen, Zhongxiang Liao, Junmiao Shi, Jiangtao Xiong, Fusheng Zhang
Format: Article
Language:English
Published: IOP Publishing 2020-01-01
Series:Materials Research Express
Subjects:
Online Access:https://doi.org/10.1088/2053-1591/ab73ff
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author Feng Jin
Jinglong Li
Dan Chen
Zhongxiang Liao
Junmiao Shi
Jiangtao Xiong
Fusheng Zhang
author_facet Feng Jin
Jinglong Li
Dan Chen
Zhongxiang Liao
Junmiao Shi
Jiangtao Xiong
Fusheng Zhang
author_sort Feng Jin
collection DOAJ
description Rotary friction welding was conducted on A286 with a diameter of ϕ 25 mm under 300, 900 and 2100 rpm to understand the structural response of the joint welded at different rotation speeds. Joint morphologies, grain structures inside the morphologies and the corresponding mechanism that governs its formation were characterized and investigated using electron backscattered diffraction (EBSD), which focused on three featured zones located at the center, 1/2R and periphery of the joint. The influence of structural response on joint properties was also investigated. Results show that the morphology of the joint evolves from ‘disk shape’ to ‘near-line shape’ and ‘scissors shape’ as the rotation speed increases from 300 rpm to 2100 rpm. At low rotation speed, refined and recrystallized grains were formed inside disk shape morphologies. Whereas, sub-grains and deformed grains were evolved at the middle (900 rpm) and high (2100 rpm) rotation speed. The recrystallized grains surrounded by the ‘disk shape’ morphology have a positive effect on the joint strength compared with the sub-grains and deformed grains confined by the ‘near-line shape’ and ‘scissors shape’ morphologies.
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spelling doaj.art-c0f2c95377cd406e8b24e72621a307db2023-08-09T16:07:38ZengIOP PublishingMaterials Research Express2053-15912020-01-017202655110.1088/2053-1591/ab73ffStructural response of A286 superalloy to rotary friction welding at different rotation speedFeng Jin0https://orcid.org/0000-0002-4981-3323Jinglong Li1Dan Chen2Zhongxiang Liao3Junmiao Shi4Jiangtao Xiong5Fusheng Zhang6State Key Laboratory of Solidification Processing, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of China; Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of ChinaShaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of China; Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of China; Shaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of ChinaShaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of ChinaShaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of ChinaShaanxi Key Laboratory of Friction Welding Technologies, Northwestern Polytechnical University , Xi’an 710072, People’s Republic of ChinaRotary friction welding was conducted on A286 with a diameter of ϕ 25 mm under 300, 900 and 2100 rpm to understand the structural response of the joint welded at different rotation speeds. Joint morphologies, grain structures inside the morphologies and the corresponding mechanism that governs its formation were characterized and investigated using electron backscattered diffraction (EBSD), which focused on three featured zones located at the center, 1/2R and periphery of the joint. The influence of structural response on joint properties was also investigated. Results show that the morphology of the joint evolves from ‘disk shape’ to ‘near-line shape’ and ‘scissors shape’ as the rotation speed increases from 300 rpm to 2100 rpm. At low rotation speed, refined and recrystallized grains were formed inside disk shape morphologies. Whereas, sub-grains and deformed grains were evolved at the middle (900 rpm) and high (2100 rpm) rotation speed. The recrystallized grains surrounded by the ‘disk shape’ morphology have a positive effect on the joint strength compared with the sub-grains and deformed grains confined by the ‘near-line shape’ and ‘scissors shape’ morphologies.https://doi.org/10.1088/2053-1591/ab73ffsuperalloy A286morphologystructural responseelectron backscattered diffractionrotary friction welding
spellingShingle Feng Jin
Jinglong Li
Dan Chen
Zhongxiang Liao
Junmiao Shi
Jiangtao Xiong
Fusheng Zhang
Structural response of A286 superalloy to rotary friction welding at different rotation speed
Materials Research Express
superalloy A286
morphology
structural response
electron backscattered diffraction
rotary friction welding
title Structural response of A286 superalloy to rotary friction welding at different rotation speed
title_full Structural response of A286 superalloy to rotary friction welding at different rotation speed
title_fullStr Structural response of A286 superalloy to rotary friction welding at different rotation speed
title_full_unstemmed Structural response of A286 superalloy to rotary friction welding at different rotation speed
title_short Structural response of A286 superalloy to rotary friction welding at different rotation speed
title_sort structural response of a286 superalloy to rotary friction welding at different rotation speed
topic superalloy A286
morphology
structural response
electron backscattered diffraction
rotary friction welding
url https://doi.org/10.1088/2053-1591/ab73ff
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