le) Name four methods used for strengthening of metals. What is the common principle that these methods rely on to make a metal stronger. 2. For the data given below

Use the fatigue curves below to answer the following questions.: Which curve(s) represent(s) a non-ferrous metal? (Select all that apply) Group of answer choices Curve B Curve A Curve C

please help me solve this question(hand written) will upvote

(3) Metals tend to expand when heated and contract when cooled. If a clock has a pendulum made of a bob attached to the end of a metal rod (as opposed to the string we used in our lab), completely describe the effect that temperature would have on the accuracy of the clock (i.e., would the clock run too fast or too slow) and why? k

(i) and (ii) are both separate questions. You must provide suitable material for borh cases  (i) and (ii)

4/ Hot working of metals can be done at below recrystallization temperature. Select one: True False

1. Explain in 1-3 bullets how as a practicing engineer you determine the yield strength of a metal from a tensile stress-strain curve. 2. Explain what is happening at the yield strength for a metal from a physical standpoint in 1-3 bullets. (e.g. what are the atoms doing?)

summarize the way in which fine_grain microstructures behave with regard to low temperature and room temperature strength and toughnesd.why not make all metals as small_grained as possible?

34% @ P 6:06 * ASIACELL I. 1 1 فيفري P 1:48 تحریر The strength constant (C) is increased with increasing of نقطة واحد- .temperature True O False O نقطة واحد- The metal is becoming weaker as strain increases, this is because of strain hardening .(work hardening) property True O d