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The yield strength of a ferritic steel increases from 120 MPa to 150 MPa when the grain size is
decreased from 256 μm to 64 μm. When the grain size is further reduced to 16 μm, the expected
yield strength is __________________ MPa
(Important : you should answer only the numeric value)
    Correct answer is '210'. Can you explain this answer?
    Most Upvoted Answer
    The yield strength of a ferritic steel increases from 120 MPa to 150 M...
    The yield strength of a material is influenced by various factors, one of which is the grain size. In general, smaller grain sizes are associated with higher strength.

    In the given scenario, the yield strength of a ferritic steel increases from 120 MPa to 150 MPa when the grain size is decreased from 256 to an unknown value.

    To determine the relationship between grain size and yield strength, we can assume a linear relationship between the two variables. We can use the equation:

    Yield strength = k / Grain size

    Where k is a constant that represents the relationship between grain size and yield strength.

    Using the given data:

    120 MPa = k / 256
    150 MPa = k / (unknown grain size)

    To find the unknown grain size, we can solve for k and substitute it into the second equation:

    k = 120 MPa * 256
    k = 30720 MPa·mm

    150 MPa = (30720 MPa·mm) / (unknown grain size)

    Cross-multiplying and rearranging the equation, we get:

    unknown grain size = (30720 MPa·mm) / 150 MPa
    unknown grain size = 204.8 mm

    Therefore, when the grain size is decreased from 256 mm to 204.8 mm, the yield strength of the ferritic steel increases from 120 MPa to 150 MPa.
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    The yield strength of a ferritic steel increases from 120 MPa to 150 MPa when the grain size isdecreased from 256 μm to 64 μm. When the grain size is further reduced to 16 μm, the expectedyield strength is __________________ MPa(Important : you should answer only the numeric value)Correct answer is '210'. Can you explain this answer?
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    The yield strength of a ferritic steel increases from 120 MPa to 150 MPa when the grain size isdecreased from 256 μm to 64 μm. When the grain size is further reduced to 16 μm, the expectedyield strength is __________________ MPa(Important : you should answer only the numeric value)Correct answer is '210'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about The yield strength of a ferritic steel increases from 120 MPa to 150 MPa when the grain size isdecreased from 256 μm to 64 μm. When the grain size is further reduced to 16 μm, the expectedyield strength is __________________ MPa(Important : you should answer only the numeric value)Correct answer is '210'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The yield strength of a ferritic steel increases from 120 MPa to 150 MPa when the grain size isdecreased from 256 μm to 64 μm. When the grain size is further reduced to 16 μm, the expectedyield strength is __________________ MPa(Important : you should answer only the numeric value)Correct answer is '210'. Can you explain this answer?.
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