DOAJ Open Access 2020

Additive Manufacturing with Superduplex Stainless Steel Wire by CMT Process

Malin Lervåg Camilla Sørensen Andreas Robertstad Bård M. Brønstad Bård Nyhus +5 lainnya

Lihat Sumber DOI

Abstrak

For many years, the oil and gas industry has utilized superduplex stainless steels due to their high strength and excellent corrosion resistance. Wire arc additive manufacturing (WAAM) was used with superduplex filler wire to create walls with different heat input. Due to the multiple heating and cooling cycles during layer deposition, brittle secondary phases may form such as intermetallic sigma (<i>σ</i>) phase. By inspecting deposited walls within wide range of heat inputs (0.40−0.87 kJ/mm), no intermetallic phases formed due to low inter-pass temperatures used, together with the high Ni content in the applied wire. Lower mechanical properties were observed with high heat inputs due to low ferrite volume fraction, precipitation of Cr nitrides and formation of secondary austenite. The walls showed good toughness values based on both Charpy V-notch and CTOD (crack tip opening displacement) testing.

Topik & Kata Kunci

Mining engineering. Metallurgy

Penulis (10)

Malin Lervåg

Camilla Sørensen

Andreas Robertstad

Bård M. Brønstad

Bård Nyhus

Magnus Eriksson

Ragnhild Aune

Xiaobo Ren

Odd M. Akselsen

Ivan Bunaziv

Format Sitasi

APA MLA BibTeX

Lervåg, M., Sørensen, C., Robertstad, A., Brønstad, B.M., Nyhus, B., Eriksson, M. et al. (2020). Additive Manufacturing with Superduplex Stainless Steel Wire by CMT Process. https://doi.org/10.3390/met10020272

Akses Cepat

Lihat di Sumber doi.org/10.3390/met10020272

Informasi Jurnal

Tahun Terbit: 2020
Sumber Database: DOAJ
DOI: 10.3390/met10020272
Akses: Open Access ✓