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Steels - Eric Palmiere

Anton Permyakov 12 questions 4.0 (1 rating)

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Questions in this quiz (12)

  1. 1Different microstructure and microalloy solute levels cannot be a result of the steel being reheated above or below its grain coarsening temperature.
    1. ATrue
    2. BFalse
  2. 2As a perlite spacing decreases......
    1. Aless Fe3C/ferrite interfacial area/unit volume which increases nucleation rate
    2. Bmore Fe3C/ferrite interfacial area/unit volume which decreases nucleation rate
    3. Cmore Fe3C/ferrite interfacial area/unit volume which increases nucleation rate
  3. 3Transformation rate of pearlite …..
    1. Aincreases with increasing transformation temperature
    2. Bincreases with decreasing transformation temperature
    3. Cincreases with constant isothermall transformation temperature
  4. 4What are the similarities between austenitic stainless steels and ferritic stainless steels?
    1. ALow yield strength
    2. BHigh yield strength
    3. CHigh work hardening rate
    4. DLow work hardening rate
    5. ESame price
    6. FGood formability
  5. 5Austenitic stainless steels:
    1. [blank_start]Low[blank_end] yield strength
    2. [blank_start]High[blank_end] work hardening rate
    3. Expensive (due to Ni content)
    4. [blank_start]Good[blank_end] formability
    1. ALow
    2. BHigh
    3. CHigh
    4. DLow
    5. EGood
    6. FPoor
  6. 6Ferritic stainless steels:
    1. [blank_start]High[blank_end] yield strength
    2. [blank_start]Low[blank_end] work hardening rate
    3. [blank_start]Less[blank_end] expensive
    4. [blank_start]Good[blank_end] formability
    1. AHigh
    2. BLow
    3. CLow
    4. DHigh
    5. ELess
    6. FMore
    7. GGood
    8. HPoor
  7. 7Under what circumstances stainless steel is not effective?
    1. AHighly acidic environment
    2. BReducing environment
    3. CIn the presence of H+
    4. DIn the presence of ultraviolet light and water
    5. EIn the presence of Cl-
  8. 8What are the two steps of the martensitic trasnformation?
    Answer: 1[blank_start]. ..................................[blank_end]
    2[blank_start].................................[blank_end]
    1. AHomogeneous distortion
    2. BLattice invariant deformation
  9. 9What is not the suporting arguments of the mobile martensite - austenite interface?
    1. ATransformation involves shear
    2. BTransformation involves diffusion
    3. CHighly mobile interface over wide temp range
    4. DMobility influenced by plastic deformation
  10. 10Is martensite starting temperature time dependent?
    1. AYes
    2. BNo

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Description
Quiz on Steels - Eric Palmiere, created by Anton Permyakov on 16/01/2019.
Language
English
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5
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year 1
Rating
4.0 out of 5 · 1 rating
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