Analysis of the elevated temperature deformation mechanisms and grain boundary strengthening of the alumina-forming austenitic stainless steel Fe–20Cr–30Ni–2Nb–5Al
Analysis of the elevated temperature deformation mechanisms and grain boundary strengthening of the alumina-forming austenitic stainless steel Fe–20Cr–30Ni–2Nb–5Al
复制标题
氧化铝奥氏体不锈钢Fe~20Cr~30Ni~2Nb~5Al高温变形机制及晶界强化分析
DOI:
10.1016/j.msea.2021.141219
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Baker, Ian
中科院分区:
文献类型:
--
作者:
Peterson, Andrew;Baker, Ian
The deformation mechanisms of an alumina-forming austenitic stainless-steel Fe–20Cr–30Ni–2Nb–5Al (at. %) were investigated at 750 °C using both creep tests and strain rate jump tests. It was found that nano-sized L12-structured precipitates were the dominant precipitate in the matrix and provided the majority of the strengthening. This behavior could be modeled well using a threshold stress term in a power law creep equation. Additionally, there appears to be a grain boundary strengthening mechanism in which the grain boundaries covered by precipitates act as barriers to dislocation movement. This could be again modeled using a power law creep equation. In addition to blocking dislocations, the grain boundary precipitates also prevent grain boundary sliding during creep. While the grain boundaries showed several strengthening mechanisms, all tests ultimately failed along the grain boundaries.
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DOI:
--
发表时间:
1962
期刊:
影响因子:
--
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F. Garofalo;O. Richmond;W. Domis
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W. Domis
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R. Shewfelt;L. M. Brown
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R. Shewfelt;L. M. Brown
DOI:
--
发表时间:
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期刊:
影响因子:
--
作者:
B. Pint;J. Shingledecker;M. Brady;P. Maziasz
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P. Maziasz
DOI:
10.1016/j.msea.2018.01.090
发表时间:
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6.4
作者:
Baker, Ian;Afonina, Natalie;Wu, Margaret
通讯作者:
Wu, Margaret
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
I. Tarigan;K. Kurata;N. Takata;T. Matsuo;M. Takeyama
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M. Takeyama