The same signed cards as the trainer above, in one list to read or print.
- Austenitic versus ferritic: what is the difference?
- Austenitic steels (300 series) have a face-centered cubic structure and are nonmagnetic when annealed. Ferritic steels (carbon steel, 400 series) are body-centered cubic and magnetic.API RP 571 Section 2
- What is a duplex stainless steel?
- A stainless steel with a mix of austenite and ferrite.API RP 571 Section 2
- What is the heat-affected zone?
- Base metal next to a weld whose structure was changed by the welding heat without melting.API RP 571 Section 2
- What happens when austenitic stainless steel is sensitized?
- Chromium carbides form at grain boundaries, leaving them low in chromium and open to intergranular attack.API RP 571 Section 2
- Intergranular versus transgranular cracking?
- Intergranular cracks follow grain boundaries; transgranular cracks cut through the grains.API RP 571 Section 2
- Why does the dew point matter for corrosion?
- Corrosive water often forms right where a vapor first condenses, so attack can peak there.API RP 571 Section 2
- In a galvanic couple, which metal corrodes?
- The less noble one, the anode.API RP 571 Section 2; API RP 571 3.31
- CUI?
- Corrosion under insulation.API RP 571 Section 2
- MIC?
- Microbiologically influenced corrosion.API RP 571 Section 2
- HIC and SOHIC?
- Hydrogen-induced cracking, and stress-oriented hydrogen-induced cracking.API RP 571 Section 2
- SCC and SSC?
- Stress corrosion cracking, and sulfide stress cracking.API RP 571 Section 2
- HTHA?
- High-temperature hydrogen attack.API RP 571 Section 2