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采用慢速拉伸的方法研究了加氢条件下ＳＡＦ２２０５双相不锈钢在－１９６～２０℃温度范围内的力学性能。结果表明：氢使钢的塑性明显下降，在－５０℃时达到极大值，温度进一步降低，氢致脆化作用逐渐减弱；降温及拉伸变形能够促进马氏体转变，导致低温强度和延性的增加；氢致脆化与马氏体转变和氢的扩散行为有关。
The mechanical properties of SAF2205 duplex stainless steel under hydrogenation condition at -196 ~ 20 ℃ were investigated by slow-stretching method. The results show that hydrogen greatly decreases the plasticity of steel and reaches the maximum at -50 ℃, further decreases the temperature and reduces the hydrogen embrittlement. The cooling and tensile deformation can promote the martensitic transformation, resulting in low temperature strength and ductility Hydrogen embrittlement and martensite transformation and diffusion of hydrogen-related behavior.