Ductility
http://en.wikipedia.org/wiki/Ductility
An object is said to be elastic if it has the ability to return to it's normal state after being stretched or squeezed. Flexibility on the other hand is the ability to bend easily without breaking.
The yield stress of tool steel is the amount of stress that a material can withstand without experiencing permanent deformation. The yield stress of a specific type of tool steel can vary depending on the specific composition and manufacturing process of the steel. In general, tool steels have high yield stresses, typically in the range of 1000 to 2000 megapascals (MPa). This allows them to withstand high levels of stress and strain without deforming permanently. For example, the yield stress of high-speed steel (HSS) can be in the range of 1500 to 2000 MPa, while the yield stress of cold-work tool steel can be in the range of 1200 to 1600 MPa. Overall, the yield stress of tool steel is an important property that determines the material's ability to withstand high levels of stress and strain without deforming permanently.
There are tables that give you the Tensile Strength based on a Rockwell Hardness test of a specimen of metal. For example: Rc of 54 is a Steel of TSU = 300,000 psi. Google the internet for Rockwell Hardness Table.
Wherever there is stress there is strain. In the example you noted, if heated bar expands freely without one end constained it changes its strain without stress; that strain is called eigenstrain. If the same bar is held rigidly then the eigenstrain resisted and you get stress and strain. So stress cannot exist without strain; but strain can exist without stress if it is eigenstrain.
no
Ductility http://en.wikipedia.org/wiki/Ductility
Ductility and malleability are two properties of metals that describe specific tendencies in certain metals. Ductility describes the property of the ability to stretch a metal, without being damaged. Highly ductile materials are useful for stretching into wires. Malleability describes the property of a metals ability to be deformed under compression. Highly malleable materials can be readily rolled or hammered into sheets. While these properties are similar, different materials react differently in these circumstances. Gold or copper for example, are both highly ductile and malleable, whilst lead is only malleable.
extensibility
Sheer strength is the ability to accomplish, move, or get through something without the assistance of anything else. Sheer strength can mean splitting wood without an axe for example.
Ductility is the physical property related to the ability of a metal to be easily transformed in wires.
fusion
you should know this!
hey jair. sublimation
If a material is easy to bend without breaking, it is usually described as flexible (flexibility). Another similar term is tensile strength (the strength of a material when it is stretched). Malleability describes the material's ability to be molded without breaking. Tensile strength and ductility describe the ability to be stretched without breaking.
"Playing by ear" describes the ability of a musician to to reproduce a piece of music without having observed another musician playing the piece.
Cut it from the unfinished side to avoid splitting.
Ductility refers to the ability of a metal to be drawn into a wire.