以ZG20Cr13为对比材料，在浓度为1mol/L的H2SO4溶液中测定了ZG06Cr13Ni4Mo(简称13-4)和Cr含量降至1061%、834%和664%(mass)时材料的阳极极化曲线.利用超声振荡空蚀实验机和洛氏硬度计分别研究了13-4、85Cr-4N i（简称85-4）和高强韧性Cr-Ni型不锈钢SRIF的空蚀行为和局域弹性性质，并研究了试验材料的组织和力学性能.结果表明，随13-4中Cr含量降低，材料的电化学腐蚀性能降低.当Cr含量降低至834%时，材料的电化学腐蚀性能与ZG20Cr13相当，仍属于不锈钢范畴.8.5-4、13-4和SRIF的局域弹性性质he无明显差别，13-4的抗空蚀性能略高于8.5-4，SRIF的抗空蚀性能明显高于前两者.
Based on ZG06Cr13Ni4Mo (13-4)，while its chromium content being reduced to 10.61%,8.34% and 6.64% respectively,their anodic polarization curves compared with that of ZG20Cr13 have been tested in 1mol/L H2SO4 solution.Using ultrasonic vibration cavitation erosion device and Rockwell apparatus，the 13-4，the 8.5Cr-4Ni (8.5-4) and the high strength and high toughness stainless steel -SRIF have been studied on the behaviors of cavitation erosion resistance and local micro-zone elasticity respectively.Their microstructures and mechanical properties have also been investigated.The results show that electrochemical corrosion properties decrease as chromium content decreases comparing with these of the 13-4.When chromium content decreases to 8.34%,the material and ZG20Cr13 are matched in electrochemical corrosion properties,which is still in the category of stainless steel.The values of local micro-zone elasticity he of 8.5-4,13-4 and SRIF are very close.The cavitation erosion resistances of the 13-4 are higher a little than these of the 8.5-4,and these of the SRIF are obviously higher than those of 8.5-4 and 13-4.
参考文献
| [1] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%