A Critical Appraisal of Static Hardness MeasurementsSource: Journal of Applied Mechanics:;1981:;volume( 048 ):;issue: 004::page 796Author:C. Rubenstein
DOI: 10.1115/1.3157736Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A semiempirical analysis of the indentation process is made as a result of which the hardness indentation data obtained with ball, cone and square-based pyramid indenters are related to the uniaxial stress-strain curve of the indented material. It is shown that deductions from the analysis are valid only for annealed materials. The factors liable to result in erroneous hardness readings are considered and the influence of residual stresses in the surface and the subsurface layers of the material under examination are shown to explain (i) the dependence of cone and pyramid hardness on the applied load and (ii) the anomalous influence of cone angle on the measured hardness when large angle indenters are pressed into materials which have been strain-hardened prior to the hardness measurement.
keyword(s): Measurement , Residual stresses , Stress AND Stress-strain curves ,
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| contributor author | C. Rubenstein | |
| date accessioned | 2017-05-08T23:10:09Z | |
| date available | 2017-05-08T23:10:09Z | |
| date copyright | December, 1981 | |
| date issued | 1981 | |
| identifier issn | 0021-8936 | |
| identifier other | JAMCAV-26188#796_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/94031 | |
| description abstract | A semiempirical analysis of the indentation process is made as a result of which the hardness indentation data obtained with ball, cone and square-based pyramid indenters are related to the uniaxial stress-strain curve of the indented material. It is shown that deductions from the analysis are valid only for annealed materials. The factors liable to result in erroneous hardness readings are considered and the influence of residual stresses in the surface and the subsurface layers of the material under examination are shown to explain (i) the dependence of cone and pyramid hardness on the applied load and (ii) the anomalous influence of cone angle on the measured hardness when large angle indenters are pressed into materials which have been strain-hardened prior to the hardness measurement. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | A Critical Appraisal of Static Hardness Measurements | |
| type | Journal Paper | |
| journal volume | 48 | |
| journal issue | 4 | |
| journal title | Journal of Applied Mechanics | |
| identifier doi | 10.1115/1.3157736 | |
| journal fristpage | 796 | |
| journal lastpage | 802 | |
| identifier eissn | 1528-9036 | |
| keywords | Measurement | |
| keywords | Residual stresses | |
| keywords | Stress AND Stress-strain curves | |
| tree | Journal of Applied Mechanics:;1981:;volume( 048 ):;issue: 004 | |
| contenttype | Fulltext |