On the friction stir processing of additive-manufactured 316L stainless steel

Name: On the friction stir processing of additive-manufactured 316L stainless steel
Author: Sajadifar, S. V., Ghobadlou, Ali Hosseınzadeh, Richter, J., Krochmal, M., Wegener, T., Bolender, A., Heidarzadeh, A., Niendorf, T., Yapıcı, Güney Güven

İsim	On the friction stir processing of additive-manufactured 316L stainless steel
Yazar	Sajadifar, S. V., Ghobadlou, Ali Hosseınzadeh, Richter, J., Krochmal, M., Wegener, T., Bolender, A., Heidarzadeh, A., Niendorf, T., Yapıcı, Güney Güven
Basım Tarihi:	2022-10
Basım Yeri	- Wiley
Konu	Fractures, Friction stir processing, Laser powder bed fusion, Mechanical properties, Microstructures, Strengths
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1438-1656
Kayıt Numarası	b8e17e1b-0ca7-4210-9a1e-530b7e4c7072
Lokasyon	Mechanical Engineering
Tarih	2022-10
Notlar	Deutsche Forschungsgemeinschaft ; Bilim Akademisi
Örnek Metin	The novel combination of friction stir processing (FSP) and additive manufacturing (AM) is studied herein. Laser-based powder bed fusion of metals (PBF-LB/M) is used to establish 316 L stainless steel with a bimodal microstructure. Upon FSP, the as-built bimodal microstructure with an average grain size of 179 μm is transformed into the unimodal microstructure containing ultrafine grains with an average grain size of 1.2 μm. Results obtained by mechanical testing reveal that after FSP; the hardness, the yield point, and the ultimate strength of additively manufactured 316 L are enhanced by 45%, 77%, and 62%, respectively. Microstructure assessment reveals that such a unique improvement in the mechanical properties is due to considerable structural refinement leading to grain boundary strengthening. Energy-dispersive X-Ray diffraction analysis reveals that phase transformation does not occur upon FSP. Fracture analysis further indicates that severe plastic deformation (SPD) during FSP can promote the transformation of coarse voids to fine voids and, hence, densification of as-built parts.
DOI	10.1002/adem.202200384
Cilt	24

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On the friction stir processing of additive-manufactured 316L stainless steel

Yazar Sajadifar, S. V., Ghobadlou, Ali Hosseınzadeh, Richter, J., Krochmal, M., Wegener, T., Bolender, A., Heidarzadeh, A., Niendorf, T., Yapıcı, Güney Güven

Basım Tarihi 2022-10

Basım Yeri - Wiley

Konu Fractures, Friction stir processing, Laser powder bed fusion, Mechanical properties, Microstructures, Strengths

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1438-1656

Kayıt Numarası b8e17e1b-0ca7-4210-9a1e-530b7e4c7072

Lokasyon Mechanical Engineering

Tarih 2022-10

Notlar Deutsche Forschungsgemeinschaft ; Bilim Akademisi

Örnek Metin The novel combination of friction stir processing (FSP) and additive manufacturing (AM) is studied herein. Laser-based powder bed fusion of metals (PBF-LB/M) is used to establish 316 L stainless steel with a bimodal microstructure. Upon FSP, the as-built bimodal microstructure with an average grain size of 179 μm is transformed into the unimodal microstructure containing ultrafine grains with an average grain size of 1.2 μm. Results obtained by mechanical testing reveal that after FSP; the hardness, the yield point, and the ultimate strength of additively manufactured 316 L are enhanced by 45%, 77%, and 62%, respectively. Microstructure assessment reveals that such a unique improvement in the mechanical properties is due to considerable structural refinement leading to grain boundary strengthening. Energy-dispersive X-Ray diffraction analysis reveals that phase transformation does not occur upon FSP. Fracture analysis further indicates that severe plastic deformation (SPD) during FSP can promote the transformation of coarse voids to fine voids and, hence, densification of as-built parts.

DOI 10.1002/adem.202200384

Cilt 24