Details

Autor(en) / Beteiligte

• Hamada, A.S.
• Haggag, F.M.
• Porter, D.A.

Titel

Non-destructive determination of the yield strength and flow properties of high-manganese twinning-induced plasticity steel

Ist Teil von

• Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2012-12, Vol.558, p.766-770

Ort / Verlag

Kidlington: Elsevier B.V

Erscheinungsjahr

2012

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• The applicability of the automated ball indentation (ABI) technique for non-destructively determining the yield strength and flow properties of a high-manganese twinning-induced plasticity steel has been explored for different grain structures. True stress–true plastic strain curves derived from the ABI measurements agreed closely with those from conventional uniaxial tensile tests showing that the technique can be used to determine the yield strength, true-stress versus true-plastic strain curve, the strength coefficient and the strain hardening exponent of the steel concerned. ► New application of the ball indentation technique to a very ductile material, i.e. high-Mn TWIP steel, has been explored for non-destructively determining the yield strength and flow properties of twining-induced plasticity (TWIP) steels. ► New relationships are empirically developed and validated for the studied TWIP steel to calculate the uniform elongation and tensile strength by automated ball indentation (ABI) measurements.