Fracture elongation

FIGURE 6.11. Ultimate tensile strength and fracture elongation at different temperature and ductile-to-brittle transition temperature as dependent on the degree of working for W-2%Th02 [6.1,6.19]. 

Recently, it was demonstrated that large deformation levels yield exceptionally high tensile strength levels (up to 1700 MPa), combined with fracture elongations above 15% [6.32]. 

Fig. 5.23 Yield and ultimate strengths and fracture elongation profiles across the 6056 friction stir weld following a postweld aging heat treatment to T78. HAZ, heat-affected zone LHZ, lowest-hardness zone TMAZ, thermomechanically affected zone WN, weld nugget R0.2, yield strength Km, ultimate strength A%, fracture elongation. Source Ref 52...

Polymer type Contraction, 293 K to 4.2 K, % Elongation to fracture Elongation/... 

Grade no. Heat treatment condition Tensile properties of flat produc Min. yield strength or 0.2% proof strength (MPa) s < 25 mm in thickness Ultimate tensile strength (MPa) Min. fracture elongation As (%)... 

Rg. 3.1-155 Yield strength and fracture elongation of as-worked tantalum versus degree of deformation [ 1.156]... 

Fig. 3.1-156 Tensile strength, fracture elongation, and reduction in area versus oxygen concentration of tantalum specimens tested at room temperature [1.168]...

Low axial shear modulus, low fracture elongation, poor impact resistance, and difficult post processing procedures. 

Axial shear modulus refers to the ratio of the subjected shear stress to its corresponding strain, the unit is Pa fracture elongation refers to the percentage ratio of material plastic elongation to its original length. 

Figure 3.302. ESR spectrum of the mechanically stressed monofilaments based on ternary copolymer poly(acrylonitrile-co-vinyl acetate-co-a-methylstyrene) with fineness of 2.5 den, impregnated with DPPH (deformation, 50% from the fracture elongation solicitation rate, 5 mm/min) [90],...

A brittle fracture occurs in the elastic range and is associated with small fracture elongation and high stresses. The sample—typically fibers or thermoplastics— breaks perpendicularly to the stress direction without flowing. 

A ductile fracture corresponds to an irreversible plastic deformation fracture elongations may reach in the latter case several hundred percent and are found in lightly cross-linked elastomers. 

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