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Laser treatment of 430 ferritic stainless steel for enhanced mechanical properties

Article dans une revue avec comité de lecture
Auteur
WANG, Zhige
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
DIRRENBERGER, Justin
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
LAPOUGE, Pierre
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
DUBENT, Sébastien
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/21357
DOI
10.1016/j.msea.2021.142205
Date
2022
Journal
Materials Science and Engineering: A

Résumé

Thin AISI 430 ferritic stainless steel sheets containing 18% Cr were hardened by continuous-wave laser beams under different conditions. A symmetric double laser treatment platform was developed to operate two lasers simultaneously in order to achieve a homogenous microstructure through the specimen and avoid the overheating associated with single laser treatments on one surface. The influence of linear energy density and shielding gas on microstructure and hardness is investigated for both single and double laser treatments. Tensile behavior and oxidation effect during treatment are also studied. With a peak temperature around Tm, the single-track laser yields local microhardness that is 90% higher than the base material, while samples completely treated by the multi-track laser present a 60% increase in yield stress and 45.8% in ultimate tensile stress. These improvements in mechanical behaviors are driven by the formation of martensite and chromium carbides upon rapid cooling despite poor carbon content and dramatic grain coarsening. These results could be useful in order to locally modify the behavior of medium chrome ferritic stainless steel to meet industrial requirements.

Fichier(s) constituant cette publication

Nom:
PIMM_MSEA_2022_WANG.pdf
Taille:
18.27Mo
Format:
PDF
Fin d'embargo:
2022-07-01
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Documents liés

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  • Laser treatment of 430 ferritic stainless steel for enhanced mechanical properties 
    Article dans une revue avec comité de lecture
    WANG, Zhige; DIRRENBERGER, Justin; LAPOUGE, Pierre; DUBENT, Sébastien (Elsevier, 2022)
    Thin AISI 430 ferritic stainless steel sheets containing 18% Cr were hardened by continuous-wave laser beams under different conditions. A symmetric double laser treatment platform was developed to operate two lasers ...
  • Laser heat treatment of martensitic steel and dual-phase steel with high martensite content 
    Article dans une revue avec comité de lecture
    LAPOUGE, Pierre; DIRRENBERGER, Justin; COSTE, Frédéric; SCHNEIDER, Matthieu (Elsevier, 2019)
    Laser heat treatment of galvanised steels with a martensite content superior to 80% were performed on a 1 cm wide area over an extensive temperature range [620 K - 1350 K]. The material softening induced is studied through ...
  • Isogeometric shape optimization of smoothed petal auxetic structures via computational periodic homogenization 
    Article dans une revue avec comité de lecture
    WANG, Zhen-Pei; POH, Leong Hien; DIRRENBERGER, Justin; ZHU, Yilin; FOREST, Samuel (Elsevier, 2017)
    An important feature that drives the auxetic behaviour of the star-shaped auxetic structures is the hinge-functional connection at the vertex connections. This feature poses a great challenge for manufacturing and may lead ...
  • Systematic design of tetra-petals auxetic structures with stiffness constraint 
    Article dans une revue avec comité de lecture
    WANG, Zhen-Pei; POH, Leong Hien; ZHU, Yilin; DIRRENBERGER, Justin; FOREST, Samuel (Elsevier, 2019)
    This paper focuses on a systematic isogeometric design approach for the optimal petal form and size characterization of tetra-petals auxetics, considering both plane stress and plane strain conditions. The underlying ...
  • Evaluation of morphological representative sample sizes for nanolayered polymer blends 
    Article dans une revue avec comité de lecture
    BIRONEAU, Adrien; DIRRENBERGER, Justin; SOLLOGOUB, Cyrille; MIQUELARD-GARNIER, Guillaume; ROLAND, Sébastien (Wiley, 2016)
    The size of representative microstructural samples obtained from atomic force microscopy is addressed in this paper. The case of an archetypal one-dimensional nanolayered polymer blend is considered. Image analysis is ...

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