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Austenite Stainless Steel

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Kanglin Ye – One of the best experts on this subject based on the ideXlab platform.

  • Study on the deformation mechanism of the inflection point in tensile curve of nano/ultrafine-grained Austenite Stainless Steel rolled at different temperature
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2020
    Co-Authors: Congjie Kang, Kanglin Ye, Jun Tang, Yue Ma

    Abstract:

    Abstract Nano/ultrafine-grained (NG/UFG) 304 Austenite Stainless Steel can be fabricated through a phase reversion transformation after severe deformation at cryogenic and room temperatures. Here, to understand the deformation mechanisms, a function of rolling temperature was established to determine the typical inflection point of transformation-induced plasticity. The typical inflection point in the tensile curve of annealed NG/UFG 304 Austenite Stainless Steel was found after rolling at room-temperature (RTA) rather than at cryogenic temperatures (LTA). Our results show that tensile deformation of LTA was governed by twin boundaries and a phase reversion transformation compared to RTA. As a result, the increased ultimate strength of LTA can be attributed to the effect of twin boundaries, twin size, and twin quantity on dislocation motion. The presence of twin boundaries suppresses the softening effect induced by martensite transformation.

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  • study on the deformation mechanism of the inflection point in tensile curve of nano ultrafine grained Austenite Stainless Steel rolled at different temperature
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2020
    Co-Authors: Congjie Kang, Jun Tang, Kanglin Ye

    Abstract:

    Abstract Nano/ultrafine-grained (NG/UFG) 304 Austenite Stainless Steel can be fabricated through a phase reversion transformation after severe deformation at cryogenic and room temperatures. Here, to understand the deformation mechanisms, a function of rolling temperature was established to determine the typical inflection point of transformation-induced plasticity. The typical inflection point in the tensile curve of annealed NG/UFG 304 Austenite Stainless Steel was found after rolling at room-temperature (RTA) rather than at cryogenic temperatures (LTA). Our results show that tensile deformation of LTA was governed by twin boundaries and a phase reversion transformation compared to RTA. As a result, the increased ultimate strength of LTA can be attributed to the effect of twin boundaries, twin size, and twin quantity on dislocation motion. The presence of twin boundaries suppresses the softening effect induced by martensite transformation.

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  • Corrosion properties of phase reversion induced nano/ultrafine grained AISI 304 metastable Austenite Stainless Steel
    Materials Research Bulletin, 2018
    Co-Authors: Yang Lv, Jun Tang, Jinliang Pi, Kanglin Ye

    Abstract:

    Abstract AISI 304 metastable Austenite Stainless Steel was cold rolled under cryogenic temperature and transformed into martensite completely, after reverse transformation by annealing, bulk nano/ultrafine grained material was obtained. The material’s microstructure was observed by TEM, and the corrosion resistance was studied by polarization curve, EIS, and Mott-Schottky plot. Results showed that samples cold rolled at −120 °C had an equiaxed microstructure and displayed the best corrosion performance. The distinctive polarization curve shape indicated that its passive film had a peculiar feature, and the M-S plot showed its abnormal semiconductor character. XPS measurements are used to directly characterize the composition of passive film formed on specimens. Heterogeneous microstructures might help with the improvement on corrosion resistance of the nano/ultrafine grained Stainless Steel.

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Jun Tang – One of the best experts on this subject based on the ideXlab platform.

  • Study on the deformation mechanism of the inflection point in tensile curve of nano/ultrafine-grained Austenite Stainless Steel rolled at different temperature
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2020
    Co-Authors: Congjie Kang, Kanglin Ye, Jun Tang, Yue Ma

    Abstract:

    Abstract Nano/ultrafine-grained (NG/UFG) 304 Austenite Stainless Steel can be fabricated through a phase reversion transformation after severe deformation at cryogenic and room temperatures. Here, to understand the deformation mechanisms, a function of rolling temperature was established to determine the typical inflection point of transformation-induced plasticity. The typical inflection point in the tensile curve of annealed NG/UFG 304 Austenite Stainless Steel was found after rolling at room-temperature (RTA) rather than at cryogenic temperatures (LTA). Our results show that tensile deformation of LTA was governed by twin boundaries and a phase reversion transformation compared to RTA. As a result, the increased ultimate strength of LTA can be attributed to the effect of twin boundaries, twin size, and twin quantity on dislocation motion. The presence of twin boundaries suppresses the softening effect induced by martensite transformation.

    Free Register to Access Article

  • study on the deformation mechanism of the inflection point in tensile curve of nano ultrafine grained Austenite Stainless Steel rolled at different temperature
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2020
    Co-Authors: Congjie Kang, Jun Tang, Kanglin Ye

    Abstract:

    Abstract Nano/ultrafine-grained (NG/UFG) 304 Austenite Stainless Steel can be fabricated through a phase reversion transformation after severe deformation at cryogenic and room temperatures. Here, to understand the deformation mechanisms, a function of rolling temperature was established to determine the typical inflection point of transformation-induced plasticity. The typical inflection point in the tensile curve of annealed NG/UFG 304 Austenite Stainless Steel was found after rolling at room-temperature (RTA) rather than at cryogenic temperatures (LTA). Our results show that tensile deformation of LTA was governed by twin boundaries and a phase reversion transformation compared to RTA. As a result, the increased ultimate strength of LTA can be attributed to the effect of twin boundaries, twin size, and twin quantity on dislocation motion. The presence of twin boundaries suppresses the softening effect induced by martensite transformation.

    Free Register to Access Article

  • Corrosion properties of phase reversion induced nano/ultrafine grained AISI 304 metastable Austenite Stainless Steel
    Materials Research Bulletin, 2018
    Co-Authors: Yang Lv, Jun Tang, Jinliang Pi, Kanglin Ye

    Abstract:

    Abstract AISI 304 metastable Austenite Stainless Steel was cold rolled under cryogenic temperature and transformed into martensite completely, after reverse transformation by annealing, bulk nano/ultrafine grained material was obtained. The material’s microstructure was observed by TEM, and the corrosion resistance was studied by polarization curve, EIS, and Mott-Schottky plot. Results showed that samples cold rolled at −120 °C had an equiaxed microstructure and displayed the best corrosion performance. The distinctive polarization curve shape indicated that its passive film had a peculiar feature, and the M-S plot showed its abnormal semiconductor character. XPS measurements are used to directly characterize the composition of passive film formed on specimens. Heterogeneous microstructures might help with the improvement on corrosion resistance of the nano/ultrafine grained Stainless Steel.

    Free Register to Access Article

Congjie Kang – One of the best experts on this subject based on the ideXlab platform.

  • Study on the deformation mechanism of the inflection point in tensile curve of nano/ultrafine-grained Austenite Stainless Steel rolled at different temperature
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2020
    Co-Authors: Congjie Kang, Kanglin Ye, Jun Tang, Yue Ma

    Abstract:

    Abstract Nano/ultrafine-grained (NG/UFG) 304 Austenite Stainless Steel can be fabricated through a phase reversion transformation after severe deformation at cryogenic and room temperatures. Here, to understand the deformation mechanisms, a function of rolling temperature was established to determine the typical inflection point of transformation-induced plasticity. The typical inflection point in the tensile curve of annealed NG/UFG 304 Austenite Stainless Steel was found after rolling at room-temperature (RTA) rather than at cryogenic temperatures (LTA). Our results show that tensile deformation of LTA was governed by twin boundaries and a phase reversion transformation compared to RTA. As a result, the increased ultimate strength of LTA can be attributed to the effect of twin boundaries, twin size, and twin quantity on dislocation motion. The presence of twin boundaries suppresses the softening effect induced by martensite transformation.

    Free Register to Access Article

  • study on the deformation mechanism of the inflection point in tensile curve of nano ultrafine grained Austenite Stainless Steel rolled at different temperature
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2020
    Co-Authors: Congjie Kang, Jun Tang, Kanglin Ye

    Abstract:

    Abstract Nano/ultrafine-grained (NG/UFG) 304 Austenite Stainless Steel can be fabricated through a phase reversion transformation after severe deformation at cryogenic and room temperatures. Here, to understand the deformation mechanisms, a function of rolling temperature was established to determine the typical inflection point of transformation-induced plasticity. The typical inflection point in the tensile curve of annealed NG/UFG 304 Austenite Stainless Steel was found after rolling at room-temperature (RTA) rather than at cryogenic temperatures (LTA). Our results show that tensile deformation of LTA was governed by twin boundaries and a phase reversion transformation compared to RTA. As a result, the increased ultimate strength of LTA can be attributed to the effect of twin boundaries, twin size, and twin quantity on dislocation motion. The presence of twin boundaries suppresses the softening effect induced by martensite transformation.

    Free Register to Access Article