Frequency-dependent fatigue and corrosion fatigue assessment of brazed AISI 304L/BNi-2 joints in air and synthetic exhaust gas condensate

2018 ◽  
Vol 41 (11) ◽  
pp. 2338-2349 ◽  
Author(s):  
Anke Schmiedt ◽  
Lukas Lücker ◽  
Matthias Manka ◽  
Wolfgang Tillmann ◽  
Frank Walther
Keyword(s):  
Corrosion Fatigue ◽  
Gas Condensate ◽  
Exhaust Gas ◽  
Frequency Dependent ◽  
Aisi 304L ◽  
Fatigue Assessment

Characterisation of the corrosion fatigue behaviour of brazed AISI 304L/BNi-2 joints in synthetic exhaust gas condensate

2018 ◽  
Vol 62 (3) ◽  
pp. 617-627 ◽  
Author(s):  
A. Schmiedt ◽  
M. Manka ◽  
W. Tillmann ◽  
F. Walther
Keyword(s):  
Corrosion Fatigue ◽  
Fatigue Behaviour ◽  
Gas Condensate ◽  
Exhaust Gas ◽  
Aisi 304L

scholarly journals Fatigue and Corrosion Fatigue Behaviour of Brazed Stainless Steel Joints AISI 304L/BAu-4 in Synthetic Exhaust Gas Condensate

Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1040 ◽  
Author(s):  
Anke Schmiedt-Kalenborn ◽  
Lars Lingnau ◽  
Matthias Manka ◽  
Wolfgang Tillmann ◽  
Frank Walther
Keyword(s):  
Stainless Steel ◽  
Corrosion Fatigue ◽  
Cyclic Deformation ◽  
Fatigue Behaviour ◽  
Fatigue Tests ◽  
Exhaust Gas ◽  
Aisi 304L ◽  
Brazed Joints ◽  
Corrosive Environments ◽  
Steel Joints

As brazed stainless steel components in service often have to withstand cyclic loads in corrosive environments, the corrosion fatigue properties of brazed joints have to be characterised. Application-relevant corrosion fatigue tests in corrosive media are extremely rare for brazed joints and cyclic deformation curves are barely investigated. In this study, fatigue tests of brazed AISI 304L/BAu-4 joints were performed in air and synthetic exhaust gas condensate K2.2 according to VDA 230-214. The fatigue behaviour of the brazed joints was compared to properties of the austenitic base material. Strain, electrical, magnetic, temperature and electrochemical measurement techniques were applied within fatigue and corrosion fatigue tests to characterise the cyclic deformation and damage behaviour of the brazed joints. It was found that the fatigue strength of 397 MPa at 2 × 106 cycles was reduced down to 51% due to the superimposed corrosive loading. Divergent microstructure-related damage mechanisms were identified for corrosion fatigue loadings and fatigue loadings of specimens in the as-received and pre-corroded conditions. The investigations demonstrate the important role of corrosive environments for the mechanical performance of brazed stainless steel joints.

Corrosion fatigue assessment of creep-resistant magnesium alloys DieMag422 and AE42

2017 ◽  
Vol 185 ◽  
pp. 33-45 ◽  
Author(s):  
Martin Klein ◽  
Gerrit Frieling ◽  
Frank Walther
Keyword(s):  
Magnesium Alloys ◽  
Corrosion Fatigue ◽  
Fatigue Assessment

Exhaust gas condensate – formation, characterization and influence on platinum measuring electrodes in diesel vehicles

2017 ◽  
Vol 242 ◽  
pp. 1251-1258 ◽  
Author(s):  
S. Binnig ◽  
S. Fuchs ◽  
C.A. Robles Collantes ◽  
H.-R. Volpp
Keyword(s):  
Gas Condensate ◽  
Exhaust Gas ◽  
Diesel Vehicles ◽  
Condensate Formation
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