Microstructure evolution of the Gleeble-simulated heat-affected zone of Ni-based superalloy
The formation of liquation cracking in a simulated heat affected zone of René108 is reported. The stress controlled thermo-mechanical experiments were carried out on a Gleeble®3800 testing system. The base alloy was lost-wax cast and then solution treated and aged. Light and scanning electron micros...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2019-01-01
|
| Series: | MATEC Web of Conferences |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2019/36/matecconf_pt2019_06002.pdf |
| _version_ | 1818641392182755328 |
|---|---|
| author | Rakoczy Łukasz Hanning Fabian Andersson Joel Grudzień-Rakoczy Małgorzata Cygan Rafał Zielińska-Lipiec Anna |
| author_facet | Rakoczy Łukasz Hanning Fabian Andersson Joel Grudzień-Rakoczy Małgorzata Cygan Rafał Zielińska-Lipiec Anna |
| author_sort | Rakoczy Łukasz |
| collection | DOAJ |
| description | The formation of liquation cracking in a simulated heat affected zone of René108 is reported. The stress controlled thermo-mechanical experiments were carried out on a Gleeble®3800 testing system. The base alloy was lost-wax cast and then solution treated and aged. Light and scanning electron microscopy of this material revealed high volume fraction of γ' precipitates in the dendrite arms and residual eutectic γ/γ' islands in the interdendritic areas. As a result of short-term exposure to high homologous temperature, the volume fraction of γ' phase was significantly decreased due to the dissolution of precipitates in the surrounding matrix. The thin non-equilibrium liquid film, formed locally along grain boundaries, was a key-factor favoring initiation of cracks and their spreading during the Gleeble testing. The liquid appeared as a result of constitutional liquation, mainly of the γ' precipitates. |
| first_indexed | 2024-12-16T23:26:26Z |
| format | Article |
| id | doaj.art-e67c7741264e420d81f8e1818a0fb1a4 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-16T23:26:26Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-e67c7741264e420d81f8e1818a0fb1a42022-12-21T22:11:59ZengEDP SciencesMATEC Web of Conferences2261-236X2019-01-012870600210.1051/matecconf/201928706002matecconf_pt2019_06002Microstructure evolution of the Gleeble-simulated heat-affected zone of Ni-based superalloyRakoczy ŁukaszHanning FabianAndersson JoelGrudzień-Rakoczy MałgorzataCygan RafałZielińska-Lipiec AnnaThe formation of liquation cracking in a simulated heat affected zone of René108 is reported. The stress controlled thermo-mechanical experiments were carried out on a Gleeble®3800 testing system. The base alloy was lost-wax cast and then solution treated and aged. Light and scanning electron microscopy of this material revealed high volume fraction of γ' precipitates in the dendrite arms and residual eutectic γ/γ' islands in the interdendritic areas. As a result of short-term exposure to high homologous temperature, the volume fraction of γ' phase was significantly decreased due to the dissolution of precipitates in the surrounding matrix. The thin non-equilibrium liquid film, formed locally along grain boundaries, was a key-factor favoring initiation of cracks and their spreading during the Gleeble testing. The liquid appeared as a result of constitutional liquation, mainly of the γ' precipitates.https://www.matec-conferences.org/articles/matecconf/pdf/2019/36/matecconf_pt2019_06002.pdf |
| spellingShingle | Rakoczy Łukasz Hanning Fabian Andersson Joel Grudzień-Rakoczy Małgorzata Cygan Rafał Zielińska-Lipiec Anna Microstructure evolution of the Gleeble-simulated heat-affected zone of Ni-based superalloy MATEC Web of Conferences |
| title | Microstructure evolution of the Gleeble-simulated heat-affected zone of Ni-based superalloy |
| title_full | Microstructure evolution of the Gleeble-simulated heat-affected zone of Ni-based superalloy |
| title_fullStr | Microstructure evolution of the Gleeble-simulated heat-affected zone of Ni-based superalloy |
| title_full_unstemmed | Microstructure evolution of the Gleeble-simulated heat-affected zone of Ni-based superalloy |
| title_short | Microstructure evolution of the Gleeble-simulated heat-affected zone of Ni-based superalloy |
| title_sort | microstructure evolution of the gleeble simulated heat affected zone of ni based superalloy |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2019/36/matecconf_pt2019_06002.pdf |
| work_keys_str_mv | AT rakoczyłukasz microstructureevolutionofthegleeblesimulatedheataffectedzoneofnibasedsuperalloy AT hanningfabian microstructureevolutionofthegleeblesimulatedheataffectedzoneofnibasedsuperalloy AT anderssonjoel microstructureevolutionofthegleeblesimulatedheataffectedzoneofnibasedsuperalloy AT grudzienrakoczymałgorzata microstructureevolutionofthegleeblesimulatedheataffectedzoneofnibasedsuperalloy AT cyganrafał microstructureevolutionofthegleeblesimulatedheataffectedzoneofnibasedsuperalloy AT zielinskalipiecanna microstructureevolutionofthegleeblesimulatedheataffectedzoneofnibasedsuperalloy |