Naslov
ULTRASONIC VELOCITY CHANGES IN X80 WELDED JOINTS WITH DIFFERENT MICROSTRUCTURES

Autori
Mihaljević, Morana ; Jurica, Maja ; Cajner, Hrvoje ; Kožuh, Zoran ;

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
MTECH 2019 / Markučič, Damir ; Stojanović, Ivan ; Mihaljević, Morana ; Kezele, Tomislav - Zagreb : Hrvatsko društvo za materijale i tribologiju, 2019, / - , 2019, 413-420

Skup
INTERNATIONAL CONFERENCE ON MATERIALS corrosion, heat treatment, testing and tribology, 2019

Mjesto i datum
Poreč, Hrvatska, 09.12.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ultrasonic velocity, material characterization, MAG welding, CBT MAG welding, acicular ferrite, inclusions

Sažetak
Ultrasonic velocity is an important acoustic parameter inherent to every material and as such is a very important factor in material characterisation. The change in ultrasonic velocity can easily be put in correlation with different physical properties of a material such as hardness, grain direction, material inhomogenities, porosity, temperature, residual stress etc. In this paper 4 different welded joints were tested. Test specimens were welded with different metal transfer modes, heat inputs and shielding gases. Depending on the varied parameters different microstructure was obtained which proved to have influence on the ultrasonic velocity. Ultrasonic velocity on prepared samples was determined by using digital oscilloscope applying pulse overlap method.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA