Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Larson-Miller parameter:
For material of example of calculate life in hours at temperature of 900oC, and at σ = 20 MPa.
Solution
Larson-Miller parameter is given by
m = T (ln t + 85.75)
Use T = 900 + 273 = 1173 K
But m = 16.75 × 104
From Example 1.7 at σ = 20 MPa
∴ 1173 (ln t + 85.75) = 16.75 × 104
∴ ln t =(16.75 × 104 /1173 )- 85.75
= 142.8 - 85.75 = 57.05
∴ t = 5.95 × 1024 hours
Changes in Mechanical Properties along with Tempering: Tempering enhances the toughness and ductility of quenched steel though decreases hardness. Following figure demonstrate
A new high temperature alloy has been developed with creep properties as follows: stress exponent, m = 4.5, activation energy, Q = 110,000 J/mol and pre-exponential constant,
Linear velocity of links using Instantaneous center method
why single point cutting tool used in lathe
Find out the reactions at hinge: A board ABCD is held in position as shown in Figure by a cable BE and a hinge at A. If the weight of the board is 5 kN, find out the reactions
A nozzle of 50 mm. dia. delivers a stream of water that strikes a flat plate which is held normal to the axis of stream. If the issuing jet has a velocity of 15 m/sec., determine:
Which type of study require for mechanial engineering
Q. Flange Facing and Surface Finish? Raised face flange facings are preferred. Flat face flanges to be used only when mating with like equipment (fabricated from brittle mat
Q. What is Warm extrusion? • Warm extrusion is done above room temperature, but below the recrystallization temperature of the material the temperatures ranges from 424 to 975
venturimeter
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd