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How to suppress the Kirkendall porosity within the Ti/Ni explosive welds?
https://orcid.org/http://orcid.org/0000-0001-6952-3270
https://orcid.org/http://orcid.org/0000-0002-7998-9143
https://orcid.org/http://orcid.org/0000-0003-4197-7611
https://orcid.org/http://orcid.org/0000-0002-0099-3052
https://orcid.org/http://orcid.org/0000-0001-8786-3586
https://orcid.org/http://orcid.org/0000-0001-8981-1480
https://orcid.org/http://orcid.org/0000-0002-3343-2374
https://orcid.org/http://orcid.org/0000-0002-5435-6788
https://orcid.org/http://orcid.org/0000-0001-5545-1261
Pure Ti (Grade 1) and Ni (type Ni201) were used to produce the Ti/Ni welds employing the explosive welding process. Thermal expansion of the welded plates was determined using dilatometric measurements from room temperature up to 600 °C. The results showed that the thermal expansion coefficient of Ti/Ni welded plates is closer to that of pure nickel than would be suggested by the Timoshenko’s model for bimetallic strip. The microstructure of the Ti/Ni interface after exposure to high temperatures revealed the presence of extensive interface porosity (Kirkendall porosity). This may cause a catastrophic disintegration of the weld during working or essential forming. The welded plates were annealed at the temperature of 650 °C under different applied compressive loads, and the applied load was shown to alter the microstructure of the NixTiy phases present at the Ti/Ni interface. Based on the obtained interface microstructural data, the strategy to suppress the Kirkendall porosity at the interface was proposed.
How to suppress the Kirkendall porosity within the Ti/Ni explosive welds?
https://orcid.org/http://orcid.org/0000-0001-6952-3270
https://orcid.org/http://orcid.org/0000-0002-7998-9143
https://orcid.org/http://orcid.org/0000-0003-4197-7611
https://orcid.org/http://orcid.org/0000-0002-0099-3052
https://orcid.org/http://orcid.org/0000-0001-8786-3586
https://orcid.org/http://orcid.org/0000-0001-8981-1480
https://orcid.org/http://orcid.org/0000-0002-3343-2374
https://orcid.org/http://orcid.org/0000-0002-5435-6788
https://orcid.org/http://orcid.org/0000-0001-5545-1261
Pure Ti (Grade 1) and Ni (type Ni201) were used to produce the Ti/Ni welds employing the explosive welding process. Thermal expansion of the welded plates was determined using dilatometric measurements from room temperature up to 600 °C. The results showed that the thermal expansion coefficient of Ti/Ni welded plates is closer to that of pure nickel than would be suggested by the Timoshenko’s model for bimetallic strip. The microstructure of the Ti/Ni interface after exposure to high temperatures revealed the presence of extensive interface porosity (Kirkendall porosity). This may cause a catastrophic disintegration of the weld during working or essential forming. The welded plates were annealed at the temperature of 650 °C under different applied compressive loads, and the applied load was shown to alter the microstructure of the NixTiy phases present at the Ti/Ni interface. Based on the obtained interface microstructural data, the strategy to suppress the Kirkendall porosity at the interface was proposed.
How to suppress the Kirkendall porosity within the Ti/Ni explosive welds?
https://orcid.org/http://orcid.org/0000-0001-6952-3270
https://orcid.org/http://orcid.org/0000-0002-7998-9143
https://orcid.org/http://orcid.org/0000-0003-4197-7611
https://orcid.org/http://orcid.org/0000-0002-0099-3052
https://orcid.org/http://orcid.org/0000-0001-8786-3586
https://orcid.org/http://orcid.org/0000-0001-8981-1480
https://orcid.org/http://orcid.org/0000-0002-3343-2374
https://orcid.org/http://orcid.org/0000-0002-5435-6788
https://orcid.org/http://orcid.org/0000-0001-5545-1261
Pure Ti (Grade 1) and Ni (type Ni201) were used to produce the Ti/Ni welds employing the explosive welding process. Thermal expansion of the welded plates was determined using dilatometric measurements from room temperature up to 600 °C. The results showed that the thermal expansion coefficient of Ti/Ni welded plates is closer to that of pure nickel than would be suggested by the Timoshenko’s model for bimetallic strip. The microstructure of the Ti/Ni interface after exposure to high temperatures revealed the presence of extensive interface porosity (Kirkendall porosity). This may cause a catastrophic disintegration of the weld during working or essential forming. The welded plates were annealed at the temperature of 650 °C under different applied compressive loads, and the applied load was shown to alter the microstructure of the NixTiy phases present at the Ti/Ni interface. Based on the obtained interface microstructural data, the strategy to suppress the Kirkendall porosity at the interface was proposed.
How to suppress the Kirkendall porosity within the Ti/Ni explosive welds?
Archiv.Civ.Mech.Eng
Wojewoda-Budka, Joanna (author) / Kwiecien, Izabella (author) / Bigos, Agnieszka (author) / Terlicka, Sylwia (author) / Litynska-Dobrzynska, Lidia (author) / Petrzak, Pawel (author) / Wierzbicka-Miernik, Anna (author) / Szczerba, Maciej (author) / Szulc, Zygmunt (author) / Rabkin, Eugen (author)
2024-04-12
Article (Journal)
Electronic Resource
English
How to suppress the Kirkendall porosity within the Ti/Ni explosive welds?
| Springer Verlag | 2024
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