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Hydrogen embrittlement in multilayer steel consisting of martensitic and twinning-induced plasticity steels

机译：由马氏体和孪晶诱导的可塑性钢组成的多层钢中的氢脆脆化

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The hydrogen embrittlement behavior of multilayer steel consisting of 7 alternating layers of martensitic (MART) steel and twinning-induced plasticity (TWIP) steel was investigated through variation in the ratio of the hard layer to the soft layer, and the size of the grains according to the autenization temperature. Multilayer steels with a high fraction of MART was predicted to be vulnerable to hydrogen embrittlement, but was found to be less susceptible to hydrogen embrittlement due to the presence of a TWIP layer, which is supported in the center of the multilayer steels. In addition, when the grain size is large, twinning in the TWIP layer and subdivision in the MART layer occur, and so hydrogen embrittlement is promoted due to the trapping of hydrogen. The effect of electrochemically-charged hydrogen on the multilayer steel during deformation was analyzed using electron backscatter diffraction in terms of the microstructure-mechanical property relationships.
机译：通过硬层与软层的比例的变化来研究由7个交替层组成的多层钢的氢脆行为，由硬层与软层的比例的变化和颗粒的尺寸进行研究到自动化温度。预计具有高级数Mart的多层钢易受氢脆的影响，但由于存在于多层钢的中心支撑而被发现由于存在而不是氢脆化的易感性。另外，当晶粒尺寸大时，在切割层中的孪生和Mart层中的细分时，因此由于氢的捕获而促进了氢脆化。在微观结构 - 机械性能关系方面，使用电子反向散射衍射分析电化学电荷氢对多层钢的影响。

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