As the grain size decreases, the ductile to brittle transition temperature _________
1.increases
2. decreases
3.remains the same
4.no defined relationship between them
Posted Date:-2022-05-09 01:16:23
The Ductile fracture depends strongly on strain rate compared with brittle fracture, which is relatively insensitive to strain rate.
1.True
2. False
Posted Date:-2022-05-09 01:13:49
The ductile to brittle transition does not depend on the metallurgical feature. It is material-specific property.
1.True
2.False
Posted Date:-2022-05-09 01:15:44
The grain size has an effect on the ductile or brittle failure of material.
1.True
2.False
Posted Date:-2022-05-09 01:15:21
The presence of notch in material will _______________ the ductile to brittle transition temperature of the material.
1.increase
2.decrease
3.remain constant
4.not dependent on notch
Posted Date:-2022-05-09 01:13:20
The presence of second phase particle reduces the ductility of the material. The type of particle which has the least effect in lowering the ductility is __________
1.spherical precipitates
2.platelike precipitates
3.rodlike precipitates
4.acicular precipitates
Posted Date:-2022-05-09 01:12:35
Which of the following force is responsible for forcing dislocation together during cracking?
1.Tensile force
2.Shear force
3.Bending force
4.Torsional force
Posted Date:-2022-05-09 01:14:33