Elongation tensile

Chemical Bp, °C Test temperature. Tensile Elongation Weight... 

The tensile elongation of soHd latex mbber has been shown to correlate well with the elongation of foam from the latex (178). The elongation of flexible polyurethane has been related to cell stmcture (180,181). 

Product Substrate/fiber Coating Weight, Thick Density, Tensile Elongation Tear Water-vap Flex... 

Tensile elongation of PVA is extremely sensitive to humidity and ranges from < 10% when completely dry to 300—400% at 80% rh. Addition of plasticizer can double these values. Elongation is independent of degree of hydrolysis but proportional to the molecular weight. Teat strength increases with increasing relative humidity or with the addition of small amounts of plasticizer. 

Temper Heat treatment, Yield strength Ultimate tensile Elongation, % in RockweU Electrical... 

Fig. 5. Tensile elongation vs time demonstrating creep behavior of ceramics. Section I is primary creep II, secondary or steady-state creep III, tertiary...

Figure 1 also shows the decrease in tensile elongation (a common measure of ductiUty) that accompanies the strength increase with cold working. Whereas these particular rolling curves include up to 70% reduction in thickness, pure copper is capable of being roUed much further without fracturing. 

Fig. 3. Changes in tensile properties of cold roUed copper (CllO), after 50% reduction in thickness, that attend annealing at each of the temperatures shown for one hour (—) represents tensile strength (---), the 0.2% yield strength and ( ), the tensile elongation. To convert MPa to psi, multiply by 145.

K. Higashi, T.G. Nieh, M. Mabuchi, and J. Wadsworth, "Effect of Liquid Phases on the Tensile Elongation of Superplastic Aluminum Alloys and Composites," Scr. Metall. Mater., 32 1079(1995). 

Beryllium is a light metal (s.g. 1 -85) with a hexagonal close-packed structure (axial ratio 1 568). The most notable of its mechanical properties is its low ductility at room temperature. Deformation at room temperature is restricted to slip on the basal plane, which takes place only to a very limited extent. Consequently, at room temperature beryllium is by normal standards a brittle metal, exhibiting only about 2 to 4% tensile elongation. Mechanical deformation increases this by the development of preferred orientation, but only in the direction of working and at the expense of ductility in other directions. Ductility also increases very markedly at temperatures above about 300°C with alternative slip on the 1010 prismatic planes. In consequence, all mechanical working of beryllium is carried out at elevated temperatures. It has not yet been resolved whether the brittleness of beryllium is fundamental or results from small amounts of impurities. Beryllium is a very poor solvent for other metals and, to date, it has not been possible to overcome the brittleness problem by alloying. 

Tensile elongation 4.0% without bulging, bursting (high burst pressure) Low creep (carbonated... 

Figure 9. DSC thermogram of Ht-BlB-34, before and after tensile elongation to break.

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