scholarly journals Microstructure, mechanical behavior, and crystallographic texture in a hot forged dual-phase stainless steel

2021 ◽  
Author(s):  
Riad Badji ◽  
Bellel Cheniti ◽  
Charlie Kahloun ◽  
Thierry Chauveau ◽  
Mohammed Hadji ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Mechanical Behavior ◽  
Crystallographic Texture ◽  
Dual Phase

scholarly journals Microstructure, Mechanical Behavior and Crystallographic Texture in a Hot Forged Dual Phase Stainless Steel.

2021 ◽  
Author(s):  
Riad Badji ◽  
Bellel Cheniti ◽  
Charlie Kahloun ◽  
Thierry Chauveau ◽  
Mohammed Hadji ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Mechanical Behavior ◽  
Grain Boundaries ◽  
Crystallographic Texture ◽  
Hot Forging ◽  
Dislocation Nucleation ◽  
S Phase ◽  
Dual Phase ◽  
Gradual Change ◽  
Temperature Range

Abstract In this work, the hot forging behavior of a dual phase stainless steel in the temperature range of 850 – 1250 °C was investigated. The study revealed the occurrence of a significant cracking phenomenon for processing temperatures below 950 °C that was attributed to the combined effect of intermetallic precipitation and severe deformation. EBSD examination highlighted the occurrence of continuous dynamic recrystallization in both ferrite and austenite microstructures for processing temperatures above 1050 °C. Increasing the hot forging temperature to 1250 °C increased the low angle grain boundaries fraction and lowered the one of the high angle grain boundaries. This was accompanied by a gradual change in the crystallographic texture of the material. The mechanical behavior investigation showed that the steel plasticity, sharply dropped after forging at 850°, was gradually recovered after hot forging at temperatures above 1050°C. This was confirmed by nanoindentation measurements that revealed a remarkable increase of the hardness and young modulus of the steel after hot forging at 850°C and 950°C due to the dislocation nucleation and the s phase precipitation at g/δ interface. The enhancement of dislocation movement at the vicinity of the grain boundaries due to the absence of s phase as well as the dynamic recovery and recrystallization occurring in the temperature range of 1050°C - 1250 °C improved the global mechanical properties of the hot forged steel.

Effect of martensite volume fraction on the mechanical behavior of an UNS S41003 dual-phase stainless steel

2020 ◽  
Vol 797 ◽  
pp. 140208
Author(s):  
Geraldo Lúcio de Faria ◽  
Leonardo Barbosa Godefroid ◽  
Isadora Pereira Nunes ◽  
José Carlos de Lacerda
Keyword(s):  
Stainless Steel ◽  
Mechanical Behavior ◽  
Volume Fraction ◽  
Dual Phase ◽  
Martensite Volume Fraction

Precipitation kinetics and mechanical behavior in a solution treated and aged dual phase stainless steel

2014 ◽  
Vol 148 (3) ◽  
pp. 664-672 ◽  
Author(s):  
R. Badji ◽  
N. Kherrouba ◽  
B. Mehdi ◽  
B. Cheniti ◽  
M. Bouabdallah ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Mechanical Behavior ◽  
Dual Phase ◽  
Precipitation Kinetics ◽  
Solution Treated

Cryogenic Mechanical Behavior of a TRIP-Assisted Dual-Phase High-Entropy Alloy

2019 ◽  
Author(s):  
Dongyue Li ◽  
Zhiming Li ◽  
Ting Zhu ◽  
Yong Zhang
Keyword(s):  
Mechanical Behavior ◽  
High Entropy Alloy ◽  
Dual Phase ◽  
High Entropy

scholarly journals Experimental and Numerical Evaluation of Mechanical Properties of 3D-Printed Stainless Steel 316L Lattice Structures

2021 ◽  
Author(s):  
M. Carraturo ◽  
G. Alaimo ◽  
S. Marconi ◽  
E. Negrello ◽  
E. Sgambitterra ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Mechanical Behavior ◽  
Numerical Simulations ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
Lattice Structures ◽  
Stainless Steel 316L ◽  
Research Attention ◽  
Octet Truss

AbstractAdditive manufacturing (AM), and in particular selective laser melting (SLM) technology, allows to produce structural components made of lattice structures. These kinds of structures have received a lot of research attention over recent years due to their capacity to generate easy-to-manufacture and lightweight components with enhanced mechanical properties. Despite a large amount of work available in the literature, the prediction of the mechanical behavior of lattice structures is still an open issue for researchers. Numerical simulations can help to better understand the mechanical behavior of such a kind of structure without undergoing long and expensive experimental campaigns. In this work, we compare numerical and experimental results of a uniaxial tensile test for stainless steel 316L octet-truss lattice specimen. Numerical simulations are based on both the nominal as-designed geometry and the as-build geometry obtained through the analysis of µ-CT images. We find that the use of the as-build geometry is fundamental for an accurate prediction of the mechanical behavior of lattice structures.

Effects of the grain shape and crystallographic texture on the grain-scale mechanical behavior of additively manufactured aluminum alloys

2021 ◽  
pp. 102415
Author(s):  
V. Romanova ◽  
O. Zinovieva ◽  
R. Balokhonov ◽  
E. Dymnich ◽  
E. Moskvichev ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Mechanical Behavior ◽  
Crystallographic Texture ◽  
Grain Shape

Mechanical behavior of DP780 dual phase steel at a wide range of strain rates

2018 ◽  
Vol 5 (9) ◽  
pp. 096519 ◽  
Author(s):  
Shengci Li ◽  
Lan Zhang ◽  
Hongjin Zhao ◽  
Liang Qi ◽  
Yonglin Kang
Keyword(s):  
Mechanical Behavior ◽  
Dual Phase Steel ◽  
Dual Phase ◽  
Strain Rates ◽  
Wide Range
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