Following are tabulated data that were gathered from a series of Charpy impact tests on a tempered 4140 steel alloy. Temperature (°C) Impact Energy () 100 89.3 75 88,6 50 87.6 25 85.4 82.9 -25 78.9 -50 73.1 -65 66.0 -75 59.3 -85 47.9 -100 34.3 -125 29.3 -150 27.1 -175 25.0 (a) Determine a ductile-to-brittle transition temperature as that temperature corresponding to the average of the maximum and minimum impact energies. (b) Determine a ductile-to-brittle transition temperature as that temperature at which the impact energy is 70 J. (a) i °C (b) i °C

Following are tabulated data that were gathered from a series of Charpy impact tests on a tempered 4140 steel alloy. Temperature (°C) Impact Energy () 100 89.3 75 88,6 50 87.6 25 85.4 82.9 -25 78.9 -50 73.1 -65 66.0 -75 59.3 -85 47.9 -100 34.3 -125 29.3 -150 27.1 -175 25.0 (a) Determine a ductile-to-brittle transition temperature as that temperature corresponding to the average of the maximum and minimum impact energies. (b) Determine a ductile-to-brittle transition temperature as that temperature at which the impact energy is 70 J. (a) i °C (b) i °C

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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