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A specimen 750 mm (30 in.) long of an S-590

A specimen 750 mm (30 in.) long of an S-590 alloy (Figure) is to be exposed to

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A specimen 750 mm (30 in.) long of an S-590 alloy (Figure) is to be exposed to a tensile stress of 80MPa (11,600psi) at 815?C (1500?F). Determine its elongation after 5000 h. Assume that the total of both instantaneous and primary creep elongations is 1.5 mm (0.06 in.).

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200 30 20 100 80 60 427°C (800 F) 10 40 30 538°C (1000 F) 20 10 649°C (1200 F) 107 10 l0-5 Steady-state creep rate (h) Stress (MPa) (Isd 01) sses

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From the 815 C line in Figure 831 the steady state creep rate is about 55 10 6 h 1 at 80MPa The st...View the full answer

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Fundamentals of Materials Science and Engineering An Integrated Approach

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Authors: David G. Rethwisch

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Question Posted: Jul 02, 2011 10:42 AM

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