Dependence of strain hardening exponent on the volume fraction and carbon content of martensite in dual phase steels during multistage work hardening

1990 ◽  
Vol 9 (2) ◽  
pp. 205-206 ◽  
Author(s):  
S. R. Mediratta ◽  
V. Ramaswamy ◽  
V. Singh ◽  
P. Ramarao
Keyword(s):  
Carbon Content ◽  
Strain Hardening ◽  
Work Hardening ◽  
Volume Fraction ◽  
Strain Hardening Exponent ◽  
Dual Phase ◽  
Dual Phase Steels

The Influence of Quenching Temperature on the Structure of a Dual-Phase Steel with 0.094% C and 0.53% Mn

2015 ◽  
Vol 809-810 ◽  
pp. 507-512 ◽  
Author(s):  
Constantin Dulucheanu ◽  
Nicolai Bancescu ◽  
Traian Severin
Keyword(s):  
Carbon Content ◽  
Dual Phase Steel ◽  
Volume Fraction ◽  
Manganese Content ◽  
Heat Treatments ◽  
Metallographic Analysis ◽  
Dual Phase ◽  
Low Carbon ◽  
Dual Phase Steels ◽  
Quenching Temperature

In this article, the authors have analysed the influence of quenching temperature (TQ) on the microstructure of a dual-phase steel with a low carbon and manganese content (0,094 % C and 0,53 % Mn). The ferrite-martensite structures, typical of the dual-phase steels, has been obtained by intercritical quenching that consisted of heating at temperatures (TQ) ranging between 750 °C and 830 °C, maintaining for 30 minutes and cooling in water. After carrying out intercritical heat treatments, samples have been subjected to metallographic analysis through which the volume fraction of martensite (VM), the volume fraction of ferrite (VF), the carbon content of the martensite (CM), the morphology and distribution of these phases have been determined, and then, the influence of quenching temperature (TQ) has been established.

Dual-Phase Steels Characterization Using Magnetic Barkhausen Noise Measurements

2005 ◽  
Vol 500-501 ◽  
pp. 639-646
Author(s):  
Aurélie Hug-Amalric ◽  
Xavier Kleber ◽  
Jacques Merlin ◽  
Hélène Petitgand
Keyword(s):  
Carbon Content ◽  
Volume Fraction ◽  
Noise Measurement ◽  
Barkhausen Noise ◽  
Dual Phase ◽  
Magnetic Barkhausen Noise ◽  
Dual Phase Steels ◽  
Noise Measurements ◽  
Duplex Steels

Magnetic Barkhausen noise measurements have been carried out to characterize ferritemartensite duplex microstructures and industrial Dual-Phase steels. We have first studied ferritemartensite duplex steels, for which the volume fraction and the carbon content of martensite were higher than for industrial Dual-Phase steels. We found linear evolutions between ferrite peak parameters and its proportion. We applied these results to industrial Dual-Phase steels and show that Barkhausen noise measurement can be successfully used for Dual-Phase steels characterization, and in particular for assessment of ferrite proportion.

The effect of carbon content on fatigue strength of dual-phase steels

2007 ◽  
Vol 28 (6) ◽  
pp. 1827-1835 ◽  
Author(s):  
M. Tayanç ◽  
A. Aytaç ◽  
A. Bayram
Keyword(s):  
Fatigue Strength ◽  
Carbon Content ◽  
Dual Phase ◽  
Dual Phase Steels

Anomaly of the Work Hardening of Zn-Cu Single Crystals Oriented for Slip in Secondary Systems

2011 ◽  
Vol 56 (4) ◽  
pp. 1021-1027
Author(s):  
K. Pieła
Keyword(s):  
Strain Hardening ◽  
Single Crystals ◽  
Yield Stress ◽  
Work Hardening ◽  
Temperature Anomaly ◽  
Strain Hardening Exponent ◽  
Plastic Behavior ◽  
Thermal Dependence ◽  
Copper Addition ◽  
Secondary Systems

Anomaly of the Work Hardening of Zn-Cu Single Crystals Oriented for Slip in Secondary SystemsThe copper alloyed (up to 1.5%) zinc single crystals oriented for slip in non-basal systems (orientation close to < 1120 >) were subjected to compression test within a range of temperatures of 77-293K. It has been stated, that Zn-Cu crystals exhibit characteristic anomalies of the thermal dependence of yield stress and of the strain hardening exponent. Both of them are related to the change in type and sequence of active non-basal slip systems: pyramidal of the 1storder {1011} < 1123 > (Py-1) and pyramidal of the 2ndorder {1122} < 1123 > (Py-2). The temperature anomaly of the yield stress results from the change of the slip from Py-2 systems to simultaneous slip in the Py-2 and Py-1 (Py-2 + Py-1) systems, occurring in the preyielding stage. On the other hand, sequential activation of pyramidal systems taking place in advanced plastic stage (i.e. the first Py-2 and next Py-2 + Py-1 systems) is responsible for temperature anomaly of strain hardening exponent. Increase in copper addition favors the activity of Py-2 systems at the expense of Py-1 slip, what leads to a drastic differences in plastic behavior of zinc single crystals.

Strain-hardening behaviors of dual phase steels with microstructure features

2016 ◽  
Vol 672 ◽  
pp. 88-97 ◽  
Author(s):  
T.T. Huang ◽  
R.B. Gou ◽  
W.J. Dan ◽  
W.G. Zhang
Keyword(s):  
Strain Hardening ◽  
Dual Phase ◽  
Dual Phase Steels

Two stage cyclic work hardening and two slope coffin-manson relationship in dual phase steels

1986 ◽  
Vol 20 (4) ◽  
pp. 555-558 ◽  
Author(s):  
S.R. Mediratta ◽  
V. Ramaswamy ◽  
P. Rama Rao
Keyword(s):  
Work Hardening ◽  
Dual Phase ◽  
Two Stage ◽  
Dual Phase Steels

Cyclic work hardening and formation of dislocation substructures during low-cycle fatigue of tempered dual-phase steels

1990 ◽  
Vol 61 (7) ◽  
pp. 325-332 ◽  
Author(s):  
Shree Ram Mediratta ◽  
Vaidyanath Ramaswamy ◽  
Vakil Singh ◽  
Rama Rao
Keyword(s):  
Work Hardening ◽  
Low Cycle Fatigue ◽  
Dual Phase ◽  
Cycle Fatigue ◽  
Dual Phase Steels
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