Effect of heat treatment and cooling rate on microstructure and properties of T92 welded joint

• Autorzy: Ma Chengyong , Wu Zhiquan , Qi Yanchang , Zhang Xin

Identyfikatory

DOI

10.2478/msp-2023-0005

• Języki publikacji: EN

Abstrakty

EN

The effects of heat treatment and cooling rate on the microstructure and properties of T92 welded joints were studied. Under the same tempering holding time, the diffusion ability in the deposited metal increased as the tempering temperature increased. The phase-change temperature was lower than the A_C1 points. In the 5-20s range of t_8/5, the deposited metal toughness decreased as the cooling rate increased. When the t_8/5 was equal to 70s, the toughness increased and the hardness decreased. The higher heat input induced coarse grain tendency. The lower welding heat input should be used in conjunction with the reasonable post-weld heat treatment.

Słowa kluczowe

EN

T92 welded joint; microstructure; heat treatment; cooling rate

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2023
• Tom: Vol. 41, No. 1
• Strony: 124--139
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Ma Chengyong

• Welding Institute, Ceneral Iron and Steel Research Institute, Beijing 100081, China

autor

Wu Zhiquan

• SPIC Yunnan International Power Investment Co., Ltd., Kunming 650228, China

autor

Qi Yanchang

• Welding Institute, Ceneral Iron and Steel Research Institute, Beijing 100081, China

autor

Zhang Xin

• Institute of New Energy Technology, State Power Investment Corporation Research Institute, Co. Ltd., Beijing 102206, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).