Quiz
Heat Treatment of Carbon Steels
Dieses Quiz enthält Fragetypen, die sich im gewohnten Player öffnen.
Fragen in diesem Quiz (12)
1The purpose of heat treatment of carbon steel is
- ATo soften the carbon steel prior to shaping and machining
- BTo relieve the residual stresses from strain hardening that occurs during cold
forming - CTo control dispersion strengthening for achieving the final strength and
hardness required in the finished product - DAll above
2The microstructure in annealed carbon steel is
- AAustenite
- BPearlite
- CBainite
- DMartensite
3Cooling down austenite by moderate cooling rate forms
- ACementite
- BPearlite
- CBainite
- DMartensite
4Carbon steel tempering should take place
- APrior to quenching
- BAfter quenching
- CPrior to normalizing
- DAfter normalizing
5Which of the following microstructures in carbon steel is a two-phased, lamellar (or
layered) structure composed of alternating layers of ferrite (88 wt. %) and cementite
(12 wt. %)?- ABainite
- BAustenite
- CMartensite
- DPearlite
6When austenite is cooled down at a very high rate by quenching, its FCC structure
will transform to Body Centred Tetragonal (BCT) known as- AAustenite
- BBainite
- CCementite
- DMartensite
7Which of the followings in carbon steel is an extremely hard and brittle phase which
lacks toughness so it should be tempered?- AAustenite
- BMartensite
- CPearlite
- DFerrite
8List the hardness in ascending order (from low to high) of micro-constitutes in plain
carbon steel
[blank_start]Ferrite[blank_end]-[blank_start]Pearlite[blank_end]-[blank_start]Bainite[blank_end]-[blank_start]Martensite[blank_end]- AFerrite
- BPearlite
- CBainite
- DMartensite
9In the process of carbon steel normalizing, it is cooled down in
- Afurnace
- Bair
- Cwater
- DSaline water
10In process of carbon steel quenching, which cooling medium has the bubbling
problem?- AWater
- BOil
- CSalt water
- DAll above
11What gas should be selected for quenching the carbon steel in the compressed gas
quenching process?- AO2
- BCl2
- CH2
- DN2
12Surface hardening heat treatment is also called as
- AAnnealing
- BQuenching
- Ctempering
- DCase hardening
Informationen
- Beschreibung
- Engineering Quiz am Heat Treatment of Carbon Steels, erstellt von Stefan Serbic am 07/04/2018.
- Autor
- Stefan Serbic
- Sprache
- English
- Aufrufe
- 237
- Schlagwörter
- Bewertung
- 5,0 von 5 · 1 Bewertung Bewerte dieses Quiz