Jezik: | Slovenski jezik |
---|---|
Leto izida: | 2014 |
Tipologija: | 2.11 - Diplomsko delo |
Organizacija: | UM FS - Fakulteta za strojništvo |
Založnik: | [K. Senovršnik] |
UDK: | [620.178+620.18]:669.14.018.62(043.2) |
COBISS: | 19049750 |
Št. ogledov: | 1449 |
Št. prenosov: | 99 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
Sekundarni jezik: | Angleški jezik |
---|---|
Sekundarni naslov: | Influence of inappropriate post weld heat treatment on HAZ hardness of creep resistant steel |
Sekundarni povzetek: | The primary purpose of my study is to determine the influence of inappropriate post weld heat treatment on HAZ hardness of creep resistant steel. First the modern steels for high temperature environments and heat treatment of samples with simulated microstructure are presented. Then the examples of HAZ on thermal cycle simulator are made. Furthermore, the heat treatment with higher and lower temperature of recommended values is made. Then we analyse the microstructure and measure the hardness of HAZ. Moreover, the temperature and time dependence of thermal treatment on hardness of heat affected zones is shown. The results indicate that the unsufficient heat treatment means a mass reduction of impact toughness of steel. On the other hand oversufficient post weld heat treatment leads to reduction of hardness in welded joint. |
Sekundarne ključne besede: | creep resistant steel;welded joint;HAZ;hardness;preheat;heat treatment;welding simulator;microstructure;mechanical properties; |
URN: | URN:SI:UM: |
Vrsta dela (COBISS): | Diplomsko delo/naloga |
Komentar na gradivo: | Univ. v Mariboru, Fak. za strojništvo |
Strani: | XII, 50 f. |
ID: | 9062091 |