本文通过对软薄膜/硬基体两相材料体系的平头压痕弹塑性模拟.重点研究了平压头压入过程中,不同屈服强度比(软薄膜屈服强度与硬基体屈服强度之比)以及不同压头尺寸下硬基体对压痕规律的影响.研究发现硬基体对压痕规律的影响与屈服强度比近似满足线性关系,且这种线性关系不随压头尺寸的改变而改变,相同压头半径下,屈服强度比越大,影响就越明显;相同屈服强度比下,压头半径越大,影响就越小.研究还发现压头压入过程中,材料的堆积对压入深度没有影响.
参考文献
| [1] | Li JCM. .Impression creep and other localized tests[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1-2 Special Issue SI):23-42. |
| [2] | Z. F. Yue;C. Eggeler .Determination of Elastic and Creep Properties of Thin-film Systems from Indentation Experiments[J].Journal of Materials Science & Technology,2000(6):559-567. |
| [3] | 岳珠峰,万建松,吕震宙.由压痕蠕变试验确定材料的蠕变性能参数[J].应用数学和力学,2003(03):275-281. |
| [4] | DOROTHEE D;KLAUS R;BRIDIT S.Creep of a TiAI alloy:a comparison of indentation and tensile testing[J].Materials Science and Engineering A,2003(357):346-354. |
| [5] | 梁开明;顾扣分;Fantozzi G.相变增韧陶瓷压痕开裂的力学分析[J].硅酸盐学报,1994(22):29-37. |
| [6] | 黄蔚;陈仝;宋显辉 .用压痕法研究玻璃的动疲劳强度[J].固体力学学报,1995,16:250-253. |
| [7] | Cai X.;Bangert H. .HARDNESS MEASUREMENTS OF THIN FILMS-DETERMINING THE CRITICAL RATIO OF DEPTH TO THICKNESS USING FEM[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,1995(1):59-71. |
| [8] | G N Peggs;I C Leigh .Recommended procedure for microindentation Vickers hardness test[R].Report MOM 62,U.K.National Physical Laboratory,1983. |
| [9] | D Lebouvier;P Gilormini;E Felder.A kinematic model for plastic indentation of a bilayer[J].Thin Solid Films,1989(172):227-239. |
| [10] | Sun Y.;Zheng S.;Bell T. .FINITE ELEMENT ANALYSIS OF THE CRITICAL RATIO OF COATING THICKNESS TO INDENTATION DEPTH FOR COATING PROPERTY MEASUREMENTS BY NANOINDENTATION[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,1995(1/2):198-204. |
| [11] | Panich N;Sun Y .Effect of penetration depth on indentation response of soft coatings on hard substrates: a finite element analysis[J].Surface & Coatings Technology,2004(2/3):342-350. |
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