Effect of dilution on fatigue behaviour of welded joints produced by low-transformation-temperature fillers

2019 ◽  
Vol 24 (7) ◽  
pp. 601-608 ◽  
Author(s):  
Shipin Wu ◽  
Dongpo Wang ◽  
Zhi Zhang ◽  
Chengning Li ◽  
Xiuguo Liu ◽  
...  
Keyword(s):  
Welded Joints ◽  
Transformation Temperature ◽  
Fatigue Behaviour

scholarly journals Low-cycle fatigue behaviour of laser welded high-strength steel DOMEX 700 MC

2018 ◽  
Vol 157 ◽  
pp. 05013 ◽  
Author(s):  
Peter Kopas ◽  
Milan Sága ◽  
František Nový ◽  
Bohuš Leitner
Keyword(s):  
Fatigue Life ◽  
Welded Joints ◽  
High Strength Steel ◽  
Fatigue Testing ◽  
Low Cycle Fatigue ◽  
High Strength ◽  
Fatigue Behaviour ◽  
Total Strain Amplitude ◽  
Cycle Fatigue ◽  
Fatigue Life Analysis

The article presents the results of research on low cycle fatigue strength of laser welded joints vs. non-welded material of high-strength steel DOMEX 700 MC. The tests were performed under load controlled using the total strain amplitude ɛac. The operating principle of the special electro-mechanic fatigue testing equipment with a suitable clamping system was working on 35 Hz frequency. Fatigue life analysis was conducted based on the Manson-Coffin-Basquin equation, which made it possible to determine fatigue parameters. Studies have shown differences in the fatigue life of original specimens and laser welded joints analysed, where laser welded joints showed lower fatigue resistance. In this article a numerical analysis of stresses generated in bending fatigue specimens has been performed employing the commercially available FEM-program ADINA.

Analysis of martensite transformation behaviour in welded joints of low transformation-temperature materials

2009 ◽  
Vol 23 (6) ◽  
pp. 411-421 ◽  
Author(s):  
Junji Yamamoto ◽  
Susumu Meguro ◽  
Yoshiki Muramatsu ◽  
Naoya Hayakawa ◽  
Kazuo Hiraoka
Keyword(s):  
Welded Joints ◽  
Transformation Temperature ◽  
Martensite Transformation ◽  
Transformation Behaviour
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