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The effect of friction welding self-regulation process on weld structure and hardness

Ptak W.

Archives of Foundry Engineering

2010

Vol. 10, iss. 3 spec.

115--118

The self-regulation phenomenon that occurs during friction welding process was characterised, and the effect of the self-regulation of the energy-related parameters on structure and hardness distribution in SW7Mo steel – 55 steel welded joint was determined experimentally. The structure and hardness of the weld zone were examined, the energy required for the stable run of a friction welding process was calculated, and a relationship between the welding energy and weld hardness was derived.

Application of quantitative metallography methods in the study of primary microstructure of low alloyed welds.

Adamiec J., Cwajna J.

Inżynieria Materiałowa

2001

R. XXII, nr 4

177-180

The application of quantitative metallography methods in the study of primary microstructure of welds obtained by Transferred Ionized Molten Energy method (T.I.M.E.), which belongs to highly efficient active gas welding process (MAG-M) was shown. The effect of arc linear energy on size, shape and distribution of primary austenite crystal in welds was determined.

W pracy przedstawiono ilościowy opis struktury pierwotnej spoiny wykonanej wysokoenergetyczną odmianą spawania w osłonie mieszanek gazowych T.I.M.E. (Transferred Ionized Molten Energy). Określono wpływ energii liniowej łuku na wielkość, kształt oraz rozkład pierwotnych kryształów austenitu w strukturze spoiny.

Application of quantitative metallography methods in the study of secondary microstructure of low alloyed welds.

Adamiec J., Cwajna J.

Inżynieria Materiałowa

2001

R. XXII, nr 4

181-184

The application of image processing and anlysis method for the selective detection of different type of ferrite in secondary microstructure of low alloyed welds obtained by T.I.M.E. (Trasferred Ionized Molten Energy) welding, which belongs to highly efficient active gas welding process (MAG-M) was shown. The procedure of quantitative description as well as secondary microstructure of welds ensuring repeatable results was worked out. The effect of arc linear energy on area fraction and size and shape of ferrite grains is presented.

W pracy przedstawiono możliwość wykorzystania analizy obrazu oraz metod metalografii ilościowej do opisu struktur wtórnych spoin wykonanych wysokoenergetyczną metodą spawania w osłonie mieszanek gazowych T.I.M.E. (Transferred Ionized Molten Energy). Określono wpływ energii liniowej na kształt i wielkość różnych typów ferrytu w strukturze wtórnej spoin T.I.M.E.