为了预测金属间化合物d相的析出对00Cr25Ni7M04N超级双相不锈钢力学性能的影响，采用纳米压痕技术对加热缓冷后该钢的δ相进行了表征，并对其显微组织进行了观察。结果表明：钢中d相的体积分数为36．7％，其纳米压痕硬度范围为14．0～17．1GPa，平均值为15．7GPa，弹性模量范围为262~380GPa，平均值为317GPa；测试结果基本排除了基体效应的影响。
To predict the effect of a phase precipitation on mechanical properties of 00Cr25Ni7Mo4N super duplex stainless steel, the intermetallics a phase was characterized by nanoindentation after slow cooling, and the microstructure was observed. The results show that the volume fraction of δ phase in the steel was 36. 7%, and the nanoindentation hardness of the δ phase was in the range of 14. 0-17. 1 GPa with a mean value of 15.7 GPa; the modulus of elasticity was in the range of 262-380 GPa with a mean value of 317 GPa. In addition, the substrateeffect on results could be removed.
参考文献
| [1] | 陈嘉砚,杨卓越,杨武,苏杰,罗丰华.双相不锈钢中σ相的形成特点及其对性能的影响[J].钢铁研究学报,2006(08):1-4. |
| [2] | W.C. Oliver;G.M. Pharr .Measurement of hardness and elastic modulus by instrumented indentation: Advances in understanding and refinements to methodology[J].Journal of Materials Research,2004(1):3-20. |
| [3] | 宋洪伟,史弼,王秀芳,张俊宝.一种低碳低合金钢的纳米压痕表征[J].金属学报,2005(03):287-290. |
| [4] | 张俊宝,杨晓萍,王秀芳,史弼,宋洪伟.精细退火GCr15钢各相微观组织纳米压痕表征[J].宝钢技术,2008(02):50-53. |
| [5] | Randall NX.;Soro JM.;Vonstebut J.;Zacharie G.;Juliaschmutz C. .NOVEL NANOINDENTATION METHOD FOR CHARACTERISING MULTIPHASE MATERIALS[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,1997(0):297-303. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%