a low-temperature heat treatment used to eliminate all or part of the
effect of cold working in steels.
A: Normalizing
B: Spheroidizing
C: Annealing
D: Process
annealing
举一反三
- To improve the machinability of low carbon steel, the heat treatment process usually used is ( ) . A: quenching B: tempering C: annealing D: normalizing
- The proper preliminary heat treatment for T12 steel is . A: complete annealing B: homogenizing annealing C: spheroidizing annealing D: isothermal annealing
- The<br/>heat treatment process (such as annealing, normalizing, etc. ) to<br/>improve the cutting performance of materials is usually arranged in<br/>(). A: After machining B: Before grinding C: Before cutting D: After roughing and before finishing
- Annealing and normalizing present a significant difference on the ductility of low carbon steels.
- Annealing and normalizing present a significant difference on the ductility of low carbon steels. A: 正确 B: 错误
内容
- 0
中国大学MOOC: Annealing and normalizing present a significant difference on the ductility of low carbon steels.
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For tool steel, the heat treatment is usually: () A: spheroidizing followed by quenching and low temperature tempering B: carburizing followed by quenching and low temperature tempering C: Quenching and high temperature tempering D: normalizing
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____<br/>is the isothermal heat treatment by which austenite transforms to<br/>bainite. A: Isothermal<br/>annealing B: Quenching C: Austempering D: Marquenching
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The common heat treatment on steels such as 65Mn and 60Si2Mn is . A: quenching + low temperature tempering B: quenching + medium temperature tempering C: quenching + high temperature tempering D: normalizing
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During heat treatment of steel, austenite transforms into martensite by A: annealing B: austenitizing C: quenching D: normalizing