Evaluation of the material’s damage in gas turbine rotors by instrumented spherical indentation
Experimental indentations are carried out on items of two different materials, taken in several location of various components from high pressure gas turbine rotor which have seen an extensive service. The components object of investigation consisted in 1st and 2nd high pressure turbine wheels made...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2014-09-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/1302 |
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| author | D. Nappini G. Zonfrillo F. Mastromatteo I. Giovannetti |
| author_facet | D. Nappini G. Zonfrillo F. Mastromatteo I. Giovannetti |
| author_sort | D. Nappini |
| collection | DOAJ |
| description | Experimental indentations are carried out on items of two different materials, taken in several
location of various components from high pressure gas turbine rotor which have seen an extensive service. The
components object of investigation consisted in 1st and 2nd high pressure turbine wheels made in nickel-base
superalloy (Inconel 718), the spacer ring (Inconel 718) and the compressor shaft made in CrMoV low alloy steel
(ASTM A471 type10).
Aim of the work is to set up the capability of the instrumented spherical indentation testing system to evaluate
variations in the material properties due to damage, resulting from temperature field and stresses acting on
components during service. To perform this task load-indentation depth curves will be acquired in various
zones of the above mentioned components. The analysis of the results has allowed to identify an energy
parameter which shows a linear evolution with the mean temperature acting on the components. |
| format | Article |
| id | doaj-art-1c64ac3f9ead4338a4fadb838a9eaddb |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2014-09-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-1c64ac3f9ead4338a4fadb838a9eaddb2025-01-03T00:40:00ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932014-09-01830Evaluation of the material’s damage in gas turbine rotors by instrumented spherical indentationD. NappiniG. ZonfrilloF. MastromatteoI. GiovannettiExperimental indentations are carried out on items of two different materials, taken in several location of various components from high pressure gas turbine rotor which have seen an extensive service. The components object of investigation consisted in 1st and 2nd high pressure turbine wheels made in nickel-base superalloy (Inconel 718), the spacer ring (Inconel 718) and the compressor shaft made in CrMoV low alloy steel (ASTM A471 type10). Aim of the work is to set up the capability of the instrumented spherical indentation testing system to evaluate variations in the material properties due to damage, resulting from temperature field and stresses acting on components during service. To perform this task load-indentation depth curves will be acquired in various zones of the above mentioned components. The analysis of the results has allowed to identify an energy parameter which shows a linear evolution with the mean temperature acting on the components.https://www.fracturae.com/index.php/fis/article/view/1302Instrumented indentation |
| spellingShingle | D. Nappini G. Zonfrillo F. Mastromatteo I. Giovannetti Evaluation of the material’s damage in gas turbine rotors by instrumented spherical indentation Fracture and Structural Integrity Instrumented indentation |
| title | Evaluation of the material’s damage in gas turbine rotors by instrumented spherical indentation |
| title_full | Evaluation of the material’s damage in gas turbine rotors by instrumented spherical indentation |
| title_fullStr | Evaluation of the material’s damage in gas turbine rotors by instrumented spherical indentation |
| title_full_unstemmed | Evaluation of the material’s damage in gas turbine rotors by instrumented spherical indentation |
| title_short | Evaluation of the material’s damage in gas turbine rotors by instrumented spherical indentation |
| title_sort | evaluation of the material s damage in gas turbine rotors by instrumented spherical indentation |
| topic | Instrumented indentation |
| url | https://www.fracturae.com/index.php/fis/article/view/1302 |
| work_keys_str_mv | AT dnappini evaluationofthematerialsdamageingasturbinerotorsbyinstrumentedsphericalindentation AT gzonfrillo evaluationofthematerialsdamageingasturbinerotorsbyinstrumentedsphericalindentation AT fmastromatteo evaluationofthematerialsdamageingasturbinerotorsbyinstrumentedsphericalindentation AT igiovannetti evaluationofthematerialsdamageingasturbinerotorsbyinstrumentedsphericalindentation |