用纳米压痕法对受不同程度拉伸变形后的电沉积镍镀层试样的硬度、弹性模量和蠕变性能进行了研究.结果表明:随着变形量从零增加到28.3%,镍镀层的硬度及其弹性模量都有明显降低,硬度从9.37 GPa下降到6.13 GPa,弹性模量从242.51 GPa下降到116.23 GPa;而蠕变位移随变形量的增加而增加,从未拉伸试样的1.25 mm增加到伸长率为28.3%试样的4.52 mm.
参考文献
| [1] | Tjong SC;Chen H .Nanocrystalline materials and coatings[J].Materials Science & Engineering, R. Reports: A Review Journal,2004(1/2):1-88. |
| [2] | 黄勇力,章莎,赵冠湘,周益春,蒋艳平.用纳米压痕法测量电沉积镍镀层的应力-应变关系[J].湘潭大学自然科学学报,2006(02):47-51. |
| [3] | 章莎,黄勇力,赵冠湘,周益春.纳米压痕法测量电沉积镍镀层的残余应力[J].湘潭大学自然科学学报,2006(01):50-53. |
| [4] | Amit Kumar Gupta;D. Ravi Kumar .Formability of galvanized interstitial-free steel sheets[J].Journal of Materials Processing Technology,2006(2):225-237. |
| [5] | L.Q. Zhou;Y.P. Li;Y.C. Zhou .Forming Limit of Electrodeposited Nickel Coating in the Left Region[J].Journal of Materials Engineering and Performance,2006(3):287-294. |
| [6] | J. M. Lee;D. C. Ko;K. S. Lee;B. M. Kim .Identification of the bulk behavior of coatings by nano-indentation test and FE-analysis and its application to forming analysis of the coated steel sheet[J].Journal of Materials Processing Technology,2007(0):309-313. |
| [7] | 谢存毅.纳米压痕技术在材料科学中的应用[J].物理,2001(07):432-435. |
| [8] | Chen JS.;Duh JG. .Indentation behavior and Young's modulus evaluation in electroless Ni modified CrN coating on mild steel[J].Surface & Coatings Technology,2001(1):6-13. |
| [9] | S.Suresh;A.E.Glannakopoulos .A new method for estimating residual stresses by instrumented sharp indentation[J].Acta materialia,1998(16):5755-5768. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%