Improving the Weld Heat-Affected-Zone (HAZ) Toughness of High-Strength Thick-Walled Line Pipes

Improving the Weld Heat-Affected-Zone (HAZ) Toughness of High-Strength Thick-Walled Line Pipes

The low-temperature fracture toughness of double-V weld seams is a well-known challenge due to the essential increased heat input for heavy-wall pipelines. A thorough investigation was conducted to explore the impact of the heat input on the grain size and precipitate coarsening, correlating the mic...

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Bibliographic Details
Main Authors: Yan Ma, Lihong Su, Chen Shen, Leigh Fletcher, Huijun Li, Leilei Sun, Lei Zheng, Chuanguo Zhang
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Metals
Subjects:
thick-walled pipeline
welding
HAZ
microstructure
low-temperature toughness
heat input
Online Access:https://www.mdpi.com/2075-4701/13/12/2018

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