Qual é a principal característica que a têmpera confere ao aço?

Tratamentos Térmicos do Aço

Interactive Video
•
Science, Professional Development
•
8th - 12th Grade
•
Hard

Ethan Morris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Flexibilidade
Dureza
Maleabilidade
Elasticidade
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que acontece com a austenita durante o resfriamento brusco na têmpera?
Transforma-se em perlita
Transforma-se em martensita
Transforma-se em sementita
Transforma-se em ferrita
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o efeito do resfriamento brusco na estrutura do aço?
Aumenta a dureza
Aumenta a flexibilidade
Diminui a resistência
Reduz a dureza
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Por que o revenimento é necessário após a têmpera?
Para aumentar a dureza
Para aliviar tensões internas
Para reduzir a resistência
Para aumentar a maleabilidade
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a diferença principal entre a austempera e a martempera?
Martempera não requer revenimento
Austempera é mais rápida que martempera
Austempera é usada para aços-carbono
Austempera forma bainita, martempera forma martensita
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual tratamento térmico é indicado para aços de alta temperabilidade?
Revenimento
Austempera
Martempera
Têmpera
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a estrutura resultante do tratamento de martempera?
Martensita
Ferrita
Bainita
Perlita
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