Testing of metals

Question 1

Tensile Test

Answer 1

Tensile strenght, yield strenght, elongation,, Hardness

Question 2

common impact strength tests

Answer 2

Izod and Charpy tests

Question 3

Destructive testing

Answer 3

testing by causing harm to the materials after process.

Question 4

Chemical Quality Control

Answer 4

tempeture, chemical

Question 5

Fatigue test

Answer 5

a test to measure a constant load being applied

Question 6

Elongation % of tensile test

Answer 6

(growth rate/ orginal) x 100

Question 7

Tensile test

Answer 7

tensile strenght, yield strenght( extenometert, elongaiton, Hardness

Question 8

three most important mechanical properties of metals

Answer 8

Hardness, strength, ductility

Question 9

Brineel hardness test formula

Answer 9

https://www.desmos.com/scientific

Question 10

Vickers hardness value formula

Answer 10

= 0.1891 F/d^2

Question 11

each hardness indenter

Answer 11

Brinell caliph ball, Rockwell diamond, VIckers Diagonal SHaped

Question 12

pros and cons of Brinell test

Answer 12

can be used for surfaces that are too course or rough. not good for too hard materials or thin sheets. ball shaped calipher

Question 13

pros and cons of Rockwell

Answer 13

is cheap and quick to set up. uses diamond shaped calipher. Uses cone shaped calipher

Question 14

pros and cons Vickers

Answer 14

can be used to measure the precise micro hardness using a microscope. however takes quit a long time to set up

Question 15

Impact tests that uses dimensions to measure the energy used

Answer 15

Chirpy v notch

Question 16

Defined as the point of stress just before a material yields

Answer 16

Modulus fo rupture bend test

Question 17

Creep test

Answer 17

the measure of wearing down through a constant loaded force over time. measure with an extensometer and higher temperature increases the process.

Question 18

what are the two types of metal failure?

Answer 18

Brittle failure: Cleavage “breaking part of atoms” ductile failure shear “ slipping of atoms”

Question 19

Two types of stress during fatigue tests

Answer 19

Tensile and Compression

Question 20

Many atoms sliding past one another on many lines called blank planes

Answer 20

Slip bands. Deformation forms and becomes more ductile and less hard