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Exam API-571 All Questions

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Exam API-571 topic 1 question 138 discussion

Actual exam question from API's API-571
Question #: 138
Topic #: 1
[All API-571 Questions]

Heat treatment can have a significant effect on the toughness and hence fatigue resistance of a metal. In general, ________ grained microstructures tend to perform better than _________ grained.

  • A. Fine, Course
  • B. Austenitic, martensitic
  • C. Course, Fine
  • D. Martensitic, austenitic
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Suggested Answer: A 🗳️

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ahmadmm
1 year, 1 month ago
Heat treatment can have an effect on fatigue resistance of a metal. In general, finer-grained microstructures tend to perform better than coarse grained. Heat treatments such as quenching and tempering can improve fatigue resistance of carbon and low-alloy steels.
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