A polymer is a compound formed of repeating structural units called mers, whose atoms share electrons to form huge molecules. Polymers usually consist of carbon ..
Comparison between crystal slip and twinning can be done in aspects like defect type, seen in, change in crystal axis, stress requirement, visibility and for occurrence ..
Hooke’s law is the proportionality gives the relationship between elastic strain (ε) and stress (σ): Where ‘E’ is Young’s modulus of elasticity. ..
When the surfaces of bearing are separated by a fluid film, the bearing materials do not have any effect on its operation so long as the parts have sufficient strength ..
Normalizing process is a heat treatment process for making material softer but does not produce the uniform material properties as produced with an annealing process. ..
Brittle fracture is one of the major concerns in Industrial Damage Mechanism and characterized by a sudden fracture in the material under stress. Normally all materials ..
You are viewing first 10 short questions and answers that are usually asked during an interview on material science and engineering topic.
The smallest unit of material, atom, consists of three particles. They are Electron, Proton, and Neutron. Electrons are negatively charged particles of magnitude ..
Mechanical properties (such as the strength, ductility, toughness, and ductile-brittle transition) depend upon the crystal structure and imperfections. Point defects ..
Deformation of solid materials has two elements: change in shape (distortion) and change in volume (dilatation). However, dilation is considered negligible in solid ..
If a specimen is subjected to high stress beyond its withstand strength, it fails and fracture of material occurs in two or more portions of the test specimen. ..
The important properties of an engineering material determine the utility of the material which influences quantitatively the response of a given material ..
Some of the micro constituents of Iron and Steel are Austenite, Ferrite, Cementide, Pearlite, Bainite, Martenite, Troostite, Sorbite and Ledeburite. Austenite (γ-iron): ..
Defects formed in steels during heat treatment are listed below. Decarburization: Heating of metals for long periods at high temperature in oxidizing atmosphere ..