Microstructure and tensile behavior of nitrogen-alloyed, dual-phase stainless steels

1996 ◽  
Vol 27 (7) ◽  
pp. 1845-1859 ◽  
Author(s):  
H. Berns ◽  
J. Kleff ◽  
G. Krauss ◽  
R. P. Foley
Keyword(s):  
Stainless Steels ◽  
Tensile Behavior ◽  
Dual Phase

scholarly journals Effect of peak stress and deformation history on the dynamic tensile behavior of a dual phase steel

2020 ◽  
Author(s):  
J.P. Escobedo ◽  
A.A.H. Ameri ◽  
M. Gonzales ◽  
R. Miller ◽  
H. Wang ◽  
...  
Keyword(s):  
Dual Phase Steel ◽  
Peak Stress ◽  
Tensile Behavior ◽  
Dual Phase ◽  
Deformation History ◽  
Stress And Deformation

A Model for the Hydrogen Diffusion in Dual-Phase Stainless Steels for High-Pressure Applications

2021 ◽  
Author(s):  
Marco Beghini ◽  
GIUSEPPE MACORETTA ◽  
Bernardo Disma Monelli ◽  
Renzo Valentini ◽  
Linda Bacchi
Keyword(s):  
High Pressure ◽  
Stainless Steels ◽  
Hydrogen Diffusion ◽  
Dual Phase

TENSILE BEHAVIOR OF INTERCRITICALLY TREATED HIGH MARTENSITE DUAL-PHASE STEEL

1997 ◽  
pp. 611-618 ◽  
Author(s):  
Asim Bag ◽  
M. Menon ◽  
K.K. Ray ◽  
E.S. Dwarakadasa
Keyword(s):  
Dual Phase Steel ◽  
Tensile Behavior ◽  
Dual Phase

scholarly journals Quantification of Large Deformation with Punching in Dual Phase Steel and Change of its Microstructure –Part III: Micro-tensile Behavior of Pre-strained Dual-phase Steel

2016 ◽  
Vol 56 (11) ◽  
pp. 2084-2092 ◽  
Author(s):  
Shinya Ogata ◽  
Yoji Mine ◽  
Kazuki Takashima ◽  
Takahito Ohmura ◽  
Hiroshi Shuto ◽  
...  
Keyword(s):  
Large Deformation ◽  
Dual Phase Steel ◽  
Tensile Behavior ◽  
Dual Phase

Investigation of the microstructure, mechanical properties and tensile behavior of a low carbon nickel-manganese dual-phase transformationinduced plasticity steel by heavy warm rolling

2020 ◽  
Vol 10 (4) ◽  
pp. 503-513
Author(s):  
Sohail Ahmad ◽  
Xiangyu Wang ◽  
Liming Fu ◽  
Javed Ahmad ◽  
Waseem Abbas ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Volume Fraction ◽  
Tensile Deformation ◽  
Warm Rolling ◽  
Tensile Behavior ◽  
Dual Phase ◽  
Trip Effect ◽  
Low Carbon ◽  
Deformation Stage ◽  
Nickel Manganese

A dual phase (martensite–austenite) low carbon nickel-manganese transformation-induced plasticity (TRIP) steel was fabricated by heavily warm rolling (HWR), and the effect of annealing on the phase fraction, mechanical properties and tensile deformation behavior of the heavily warm rolled (HWRed) steel was investigated. The results showed that the reverse transformation of γ-austenite from α′-martensite occurs and that the γ-austenite volume fraction (VA) decreases from 91% to 55% as the annealing temperature increases from 400 °C to 800 °C, respectively. The HWRed steel annealed at 400 °C exhibits a high strength-high ductility combination with yield strength of 706 MPa, ultimate tensile strength (UTS) of 1573 MPa, total elongation (TEL) of 21.6%, and the product of the strength and elongation (PSE: UTS×TEL) is 34 GPa%. These excellent mechanical properties are principally attributed to the formation of a large volume fraction of austenite (γ) by the reverse transformation and subsequent TRIP effect during tensile deformation. It was found that the HWRed and annealed steels exhibit a special tensile behavior with a large yielding strain followed by pronounced strain hardening. The tensile curve can be readily divided into three obviously different stages. The strain-induced martensite (SIM) transformation (γ -α′) occurs in the early yielding deformation stage and in the intermediate rapidly hardening deformation stage, indicating that the TRIP effect dominates the process of these two stages. However, the retained γ-austenite remains very stable, and no TRIP effect is observed in the final hardening deformation stage. The load-unload reload (LUR) test was performed to evaluate the back stress (σb) hardening effect during tensile testing. It is believed that the pronounced strain hardening behavior after yielding is mainly associated with the σb enhancement induced by the strain partitioning between the soft retained γ-austenite and the hard α′-martensite due to the SIM transformation during tensile deformation.

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