7. Which of the following statements is suitable to describe the mechanical properties of low carbon steels and high carbon steels without cold working treatment? (a) Low carbon steels containing ferrite and pearlite phases generally have lower tensile strength than high carbon steels. (b) Low carbon steels containing cementite and pearlite phases generally have lower hardness than high carbon steels. Low carbon steels containing ferrite and cementite phases generally have higher ductility and higher hardness than high carbon steels. (d) Low carbon steels are generally less stiff than aluminum alloy.

7. Which of the following statements is suitable to describe the mechanical properties of low carbon steels and high carbon steels without cold working treatment? (a) Low carbon steels containing ferrite and pearlite phases generally have lower tensile strength than high carbon steels. (b) Low carbon steels containing cementite and pearlite phases generally have lower hardness than high carbon steels. Low carbon steels containing ferrite and cementite phases generally have higher ductility and higher hardness than high carbon steels. (d) Low carbon steels are generally less stiff than aluminum alloy.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Strengthening of Alloys

Strengthening of the alloys is required as metals become weak due to various lattice defects, metal bonding phenomena. The strength of the metals is not enough for any mechanical work. The internal dislocations of any metals arise due to forming processes. Due to the movement of these dislocations, the metals are plastically deformed.

Question

7.
Which of the following statements is suitable to describe the mechanical properties of low carbon
steels and high carbon steels without cold working treatment?
(a)
Low carbon steels containing ferrite and pearlite phases generally have lower tensile strength
than high carbon steels.
(b)
Low carbon steels containing cementite and pearlite phases generally have lower hardness than
high carbon steels.
(c)
Low carbon steels containing ferrite and cementite phases generally have higher ductility and
higher hardness than high carbon steels.
(d) Low carbon steels are generally less stiff than aluminum alloy.

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