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If anyone ever tries digging into this phenomena, I'd like to be a little bit of help. Try reading something about the "Dynamic Strain Aging" and "PLC effect". Still if you are lazy and do not prefer it, well, as an unqualified person I'd say it is "...due to the impurities obstructing the dislocations from occuring. These interstitials and etc. just forms non-permanent molecular bonds and keeps the dislocations from moving. When the stress overcomes an impurity site, then it encounters another and this whole thing keeps going like a cycle; and this is the reason of that fluctuation which goes on like till the stress-strain curve reaches its secondary yield point."
p.s. wiki was quite much the thing that Ive learned it all from...
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∙ 12y ago
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When a tensile strength test specimen begins to deform permanently it has reached its?
Tensile yield point or yield strength
What is yield point?
it is when the rock compresses into trees and it turns into a fossil in a few million years
Why does the theoretical yield differ from the actual yield?
The theoretical yield is the amount of product that we predict will be obtained, calculated from the eqquation. The actual yield is the amount of product that is actually obtained at the end of the procedure.
What is cut off yield?
what is cut off yield? ans. cut off yield is the rate at which bids are accepted. bids at yield higher than the cut off yield are rejected and those lower than the cut off are accepted. the cut off yield is set as the coupon rate for the security. bidders who have bid at lower than the cut off yield pay a premium on the security, since the auction is a multiple price auction.
What is yield forces?
The force required to cause the yielding of the solidis called the yield force.
Why the mild steel have two yield points?
Low carbon steels suffer from yield-point runout where the material has two yield points. The first yield point (or upper yield point) is higher than the second and the yield drops dramatically after the upper yield point. If a low carbon steel is only stressed to some point between the upper and lower yield point then the surface may develop Lüder bands.
What is the difference of rupture point and yield point?
katree
What is the dividend yield considered to be?
The dividend yield is considered to be the most important aspect of any yield. It is the point at which a yield becomes profitable and remains profitable after that.
When does the yield strength of a rectangular metal wire say stainless steel or titanium wire increase?
If you work it beyond the yield point then you raise the yield point in a process called strain hardening
What is the difference the proportional limit and the yield point of a spring that has been over stretched?
differece between proportional limit and yield point of a spring?
A test specimen is stressed beyond the yield point and is then unloaded its yield point will be?
increased...because the specimen is strain hardened due to plastic deformation.
Why the yield point occur in the stress-strain graph of mild steel?
Once material is stressed. dislocations present in it starts to move and gather near grain boundary. These dislocation are repulsive in nature and resist further movement, hence yield point occurs. Once dislocations crosses the grain boundary, there is very less amount of force required to keep them moving, hence yield point phenomenon appears i.e. less amount of force is required.
When a tensile strength test specimen begins to deform permanently it has reached its?
Tensile yield point or yield strength
Why is evaporation called surface phenomenon whereas boiling is bulk phenomenon?
cos the boiling point 100 degree celcius
The brain will refer sensation to their usual point of stimulation even when they are stimulated else where this phenomenon is called?
This phenomenon is called projection.
What is mean by yield strength of steel?
The steel has a ductile material properties so that it could be elongate at a point of ultimate yield point.It is stable while before the break point
What factors affect the melting point of aspirin?
losing yield
