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首页> 外文期刊>Journal of Materials Engineering and Performance >Mossbauer Effect Study of Room Temperature Cathodic Polarization of AISI321SS Austenitic Stainless Steel
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Mossbauer Effect Study of Room Temperature Cathodic Polarization of AISI321SS Austenitic Stainless Steel

机译：AISI321SS奥氏体不锈钢室温阴极极化的Mossbauer效应研究。

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摘要

Room temperature hydrogen charging by cathodic polarization of cold rolled AISI 321SS austenitic stainless steel in appropriate electrolytic medium leads to its decomposition to structural defects and a ferromagnetic α'-martensitic phase. The degree of decomposition, and hence the resulting products depends on hydrogen charging time with martensitic transformation yielding up to 14-22% martensite for charging periods of 30 and 96 h, respectively. Based on Mossbauer spectroscopy measurements, the magnetically split portion of the spectra corresponding to the α'-martensite phase was resolved in terms of one Fe-site with internal magnetic field in the range of 260-265 ±10 kOe. Both the uncharged and retained (after hydrogen charging) austenitic phases were resolved similarly at ambient and sub-ambient cryogenic temperatures. The austenitic phase in both the uncharged and charged states remained stable from ambient down to 4.2 K, where they exhibited singlet broadening suggesting weakly ferro/antifero-magnetic ordering.
机译：在适当的电解介质中，冷轧AISI 321SS奥氏体不锈钢的阴极极化可导致室温氢充入，导致氢分解为结构缺陷和铁磁α'-马氏体相。分解的程度以及由此产生的产物取决于氢气的装料时间，其中马氏体相变分别在30和96 h的装料时间中产生高达14-22％的马氏体。基于Mossbauer光谱测量，对应于α'-马氏体相的光谱的磁性分裂部分被解析为具有内部磁场范围为260-265±10 kOe的一个Fe部位。在环境温度和低于室温的低温下，未充电相和保留（在充氢后）奥氏体相都得到了类似的分辨。从环境到低至4.2 K，在不带电和带电状态下，奥氏体相都保持稳定，在那里它们表现出单重态展宽，表明铁/反铁磁序弱。

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