Suppression of Hydrogen Embrittlement by Formation of Stable Austenite-Layer in Metastable Austenitic Stainless Steel
Suppression of Hydrogen Embrittlement by Formation of Stable Austenite-Layer in Metastable Austenitic Stainless Steel
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通过在亚稳奥氏体不锈钢中形成稳定奥氏体层来抑制氢脆
DOI：
10.1016/j.scriptamat.2014.07.005
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发表时间：
2014
影响因子：
6
通讯作者：
S.
中科院分区：
文献类型：
--
作者：
Tsuchiyama;T.;Tsuboi;K.;Iwanaga;S.;Masumura;T.;Macadre;A.;Nakada;N. and Takaki;S.
对亚稳奥氏体不锈钢板（Fe-18 Cr-8 Ni合金）进行固溶渗氮以稳定板表面附近的奥氏体。冷轧后，内部奥氏体几乎全部转变为马氏体，但稳定的表面奥氏体保持不变。内部形变诱发马氏体是材料高强度的主要原因，而表面稳定的马氏体层对防止氢渗透起着重要作用。结果表明，冷轧试样的抗氢脆性能显著提高。
Solution nitriding was applied to a metastable austenitic stainless steel plate (Fe–18Cr–8Ni alloy) to stabilize the austenite near the plate surface. After cold rolling, the interior austenite almost entirely transformed to martensite, but the stabilized surface austenite remained unchanged. The interior deformation-induced martensite contributes to the material’s high strength and the surface stable austenite-layer plays an important role in preventing hydrogen permeation. As a result, the resistance to hydrogen embrittlement was significantly improved for the cold-rolled specimen.