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通过低温（－７０℃）拉伸制备不同马氏体相交量的１Ｃｒ１８Ｎｉ９Ｔｉ试样，用ＸＲＤ、ＴＥＭ及金相观察研究形变诱发马氏体相变的规律。用电化学方法研究。α’马氏体（铁磁相）含量对１Ｃｒ１８Ｎｉ９Ｔｉ钢在含Ｃｌ－溶液中孔蚀敏感性的影响。结果表明：随试样变形量加大，形变诱发马氏体中铁磁性的α’马氏体含量不断增大，而ε马氏体相的量始终较小。材料的孔蚀敏感性先随铁磁相含量的增大而增大；当铁磁相含量达到４．５８％以后，孔蚀敏感性反而渐降；当铁磁相含量超过２５．５％后，孔蚀敏感性又增加。
The 1Cr18Ni9Ti samples with different amounts of martensite were drawn by low temperature (-70 ℃) stretching. The deformation induced martensitic transformation was studied by XRD, TEM and metallographic observation. Electrochemical methods. Effect of α ’Martensitic (Ferromagnetic) Content on Pitting Erosion Sensitivity of 1Cr18Ni9Ti Steel in Cl-Containing Solution. The results show that the content of ferromagnetic α ’martensite in the strain-induced martensite keeps increasing while the amount of the ε-martensite phase is always smaller with the increase of the specimen deformation. The pitting susceptibility of the material increases with the increase of the content of ferromagnetic phase. When the content of ferromagnetic phase reaches 4.58%, the pitting susceptibility declines gradually. When the content of ferromagnetic phase exceeds 25.5% , Pitting sensitivity has increased.