index of plasticity

plasticity index

Numerical difference between the liquid limit and the plastic limit.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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Strength limit Rm, characteristics of plasticity for workability at higher temperature (reduction of area Z, index of plasticity to rupture according to Kolmogorov [[lamnda].sub.R]), ductility A, Paurs index of plasticity [D.sub.sm] and exponent of strain hardness n were calculated from measured results on three tested specimen at each tested temperatures.
1, temperature courses of percentage reduction of area Z and ductility A are in Fig.2, temperature courses of index of plasticity according to Kolmogorov [[lamnda].sub.R]) and Paur s index of forming capacity [D.sub.sm] are in Fig.3.
From stress strain diagrams and dimensions of specimens strength limit [R.sub.m], characteristics of plasticity for warm workability (percentage reduction of area Z, index of plasticity to rupture according to Kolmogorov [[lambda].sub.R]) and Paur's index of forming capacity [D.sub.sm] were calculated.
1, temperature course of percentage reduction of area is in Fig.2, temperature course of index of plasticity is in Fig.
Strength limit [R.sub.m], characteristics of plasticity for workability at higher temperature (reduction of area Z, index of plasticity to rupture according to Kolmogorov kR, ductility A, Paur's index of plasticity [D.sub.sm]) and exponent of strain hardness n were calculated from measured results on three tested specimens at each tested temperatures.
Temperature courses of index of plasticity according to Kolmogorov [[lambda].sub.R] and Paur's index of forming capacity [D.sub.sm] are demonstrated by Fig.3.
Strength limit Rm, characteristics of plasticity for warm workability (reduction of area Z and index of plasticity according to Kolmogorov [[lambda].sub.R]), strain hardness curves and exponent of strain hardness were calculated from measured results at each tested temperatures.
Index of plasticity according to Kolmogorov has similar course as reduction of area and it proves increase of plasticity in dependence on temperature as well.

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