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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 (Autor:in) / Kwiecien, Izabella (Autor:in) / Bigos, Agnieszka (Autor:in) / Terlicka, Sylwia (Autor:in) / Litynska-Dobrzynska, Lidia (Autor:in) / Petrzak, Pawel (Autor:in) / Wierzbicka-Miernik, Anna (Autor:in) / Szczerba, Maciej (Autor:in) / Szulc, Zygmunt (Autor:in) / Rabkin, Eugen (Autor:in)
12.04.2024
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
How to suppress the Kirkendall porosity within the Ti/Ni explosive welds?
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