Failure analysis of a C-type bourdon tube

被引:0
|
作者
Aristizabal-Sierra, Ricardo [1 ]
Rios-Diez, Oscar [1 ]
Rojas-Arango, Marcelo [1 ]
机构
[1] Univ Antioquia, Engn Fac, Dept Mat Engn, Gipimme, Calle 67 53-108,Bloque 18,Oficina 240, Medellin 050010, Colombia
关键词
Metallurgical engineering; C-type Bourdon tube; AISI 316L stainless steel; Root cause analysis; Intergranular corrosion; Manufacturing defect; INTERGRANULAR CORROSION; MICROSTRUCTURE;
D O I
10.1016/j.engfailanal.2024.108763
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper presents the failure analysis of a C-type Bourdon tube made of AISI 316L stainless steel, which was part of a pressure gauge. For the study, chemical composition and microstructure of the Bourdon tube were determined. Additionally, electrochemical attack with oxalic acid was used to asses if the microstructure was suspected of sensitization in samples taken near to and away from the failure. Finally, fractographic analysis of the failed Bourdon tube was accomplished by scanning electron microscopy. The results showed that the failure was due to an intergranular corrosion phenomenon that embrittled the material in the area close to the welding between the Bourdon tube and the joint.
引用
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页数:10
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