2. The flow curve expresses the behavior of a metal in which of the following regions of thestress strain curve? (a) plastic region. (b) elastic region, or (c) both of them.3. Which one of the following materials has the highest hardness? (a) high carbon steel. (b)gray cast iron, (c) hardened tool steel, (d) alumina, or (e) polystyrene.1. Cracks are an example of which one of the following types of crystal structure defects? (a)dislocation. (b) volume defects. (c) line defects, (d) point defects, or (e) surface defects.5. If strain measurements were made during a tensile test, which of the following would havethe higher value? (a) engineering stain, (b) true strain, or (c) both are equal.6. Identify which of the following materials is not ceramic? (a) glass, (b) diamond, (c) SiC.(d) TiC, or (e) alumina.

The deformation of a material in response to a tensile, compressive, or torsional force is…

Answered: stress strain curve? (a) plastic…

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stress strain curve? (a) plastic region. (b) elastic region, or (c) both of them.

Welding: Principles and Applications (MindTap Course List)

8th Edition

ISBN:9781305494695

Author:Larry Jeffus

Publisher:Larry Jeffus

Chapter26: Welding Metallurgy

Section: Chapter Questions

Problem 23R: Which property, brittleness or ductility, will let a metal deform without breaking? Why?

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Concept explainers

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.

Question

2. The flow curve expresses the behavior of a metal in which of the following regions of the
stress strain curve? (a) plastic region. (b) elastic region, or (c) both of them.
3. Which one of the following materials has the highest hardness? (a) high carbon steel. (b)
gray cast iron, (c) hardened tool steel, (d) alumina, or (e) polystyrene.
1. Cracks are an example of which one of the following types of crystal structure defects? (a)
dislocation. (b) volume defects. (c) line defects, (d) point defects, or (e) surface defects.
5. If strain measurements were made during a tensile test, which of the following would have
the higher value? (a) engineering stain, (b) true strain, or (c) both are equal.
6. Identify which of the following materials is not ceramic? (a) glass, (b) diamond, (c) SiC.
(d) TiC, or (e) alumina.

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