Podcast
Questions and Answers
What is the unit of the given hardness number in Vickers Hardness test?
What is the unit of the given hardness number in Vickers Hardness test?
Which of the following hardness tests uses a spherical or sphero-conical indenter?
Which of the following hardness tests uses a spherical or sphero-conical indenter?
What is the ability of a material to withstand shock loading?
What is the ability of a material to withstand shock loading?
Which of the following hardness tests is used for most metals and uses a 10 mm steel or WC ball indenter?
Which of the following hardness tests is used for most metals and uses a 10 mm steel or WC ball indenter?
Signup and view all the answers
What is the formula for notch impact energy in Charpy Impact Test?
What is the formula for notch impact energy in Charpy Impact Test?
Signup and view all the answers
What is the first step in the Rockwell Hardness test?
What is the first step in the Rockwell Hardness test?
Signup and view all the answers
What is the approximate tensile stiffness of steel?
What is the approximate tensile stiffness of steel?
Signup and view all the answers
Which type of fracture occurs in materials that resist deformation?
Which type of fracture occurs in materials that resist deformation?
Signup and view all the answers
What is the term for the ability of a material to absorb energy and deform plastically without fracturing?
What is the term for the ability of a material to absorb energy and deform plastically without fracturing?
Signup and view all the answers
What is the purpose of hardness testing in material science?
What is the purpose of hardness testing in material science?
Signup and view all the answers
What is the name of the scale used to characterize the hardness of polymers?
What is the name of the scale used to characterize the hardness of polymers?
Signup and view all the answers
Which of the following materials is used as a reference mineral in the Mohs hardness scale?
Which of the following materials is used as a reference mineral in the Mohs hardness scale?
Signup and view all the answers
What is the relationship between the ultimate tensile strength (UTS) of a material and its Brinell hardness number (BHN)?
What is the relationship between the ultimate tensile strength (UTS) of a material and its Brinell hardness number (BHN)?
Signup and view all the answers
What is the term for the deformation of a material under tension, resulting in a localized reduction in cross-sectional area?
What is the term for the deformation of a material under tension, resulting in a localized reduction in cross-sectional area?
Signup and view all the answers
What does a tensile test primarily measure?
What does a tensile test primarily measure?
Signup and view all the answers
Which of the following is a characteristic of plastic deformation?
Which of the following is a characteristic of plastic deformation?
Signup and view all the answers
What is the modulus of elasticity (Young's modulus) equivalent to in a stress-strain curve?
What is the modulus of elasticity (Young's modulus) equivalent to in a stress-strain curve?
Signup and view all the answers
Which property measures a material's resistance to elastic deformation?
Which property measures a material's resistance to elastic deformation?
Signup and view all the answers
In the stress-strain curve, what does the symbol $\sigma_{0.2%}$ represent?
In the stress-strain curve, what does the symbol $\sigma_{0.2%}$ represent?
Signup and view all the answers
How is ductility commonly measured from the stress-strain curve?
How is ductility commonly measured from the stress-strain curve?
Signup and view all the answers
What does the ultimate tensile strength ($\sigma_{UTS}$) signify?
What does the ultimate tensile strength ($\sigma_{UTS}$) signify?
Signup and view all the answers
What type of test is a visual test (VT) considered as?
What type of test is a visual test (VT) considered as?
Signup and view all the answers