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Microstructure and mechanical properties of 9Ni steel joints welded by NiCrMo filler alloy

Welding of cryogenic 9Ni steel is performed using NiCrMo alloy systems with different Nb and C contents. The microstructure and mechanical properties of the welded joints are investigated， and the fracture toughness of the joints under ultra-cryogenic conditions is analyzed by crack tip opening disp...

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Main Authors: CHANG Zijin, QI Yanchang, MA Chengyong, CONG Baoqiang, WEI Jinshan, PENG Yun
Format: Artigo
Language:Chinês
Published: Journal of Materials Engineering 2025-11-01
Series:Cailiao gongcheng
Subjects:
nicrmo alloy
9ni steel welding
nb content
microstructure
mechanical property
Online Access:https://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2023.000169
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