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MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW

Cilt: 29 Sayı: 3 3 Eylül 2026
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MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW

Öz

High-strength 7XXX series aluminum alloys are extensively used in aerospace structures due to their superior strength-to-weight ratio, fracture toughness, and fatigue resistance. However, their sensitivity to solidification-related defects limits the effectiveness of conventional fusion welding techniques. Friction Stir Welding (FSW), a solid-state joining process performed below the melting temperature, provides a viable alternative by suppressing solidification defects while introducing complex thermo-mechanical cycles that significantly affect microstructural stability. This review critically evaluates the microstructural evolution and mechanical performance of friction stir welded 7XXX aluminum alloys, with particular emphasis on the behavior of metastable η′ (MgZn₂-based) strengthening precipitates across the characteristic weld regions: Base Material (BM), Heat-Affected Zone (HAZ), Thermo-Mechanically Affected Zone (TMAZ), and Stir Zone (SZ). The influence of welding-induced thermal exposure on precipitate dissolution, coarsening, and overaging is systematically discussed in relation to the development of weld-zone softening and joint efficiency. Furthermore, the role of key process parameters in controlling precipitation stability and mechanical response is examined. By integrating current findings from the literature, this study highlights the governing metallurgical mechanisms responsible for weld heterogeneity and identifies remaining research challenges associated with precipitation kinetics and process optimization in aerospace-grade 7XXX aluminum alloys.

Anahtar Kelimeler

Kaynakça

  1. Ahmed, M. M. Z., Ataya, S., Seleman, M. M. E., Mahdy, A. M. A., Alsaleh, N. A., & Ahmed, E. (2021). Heat input and mechanical properties investigation of friction stir welded AA5083/AA5754 and AA5083/AA7020. Metals, 11(1), 68. https://doi.org/10.3390/met11010068
  2. Ahmed, M. M. Z., Habba, M. I. A., Seleman, M. M. E. S., Hajlaoui, K., Ataya, S., Latief, F. H., & EL-Nikhaily, A. E. (2021). Bobbin tool friction stir welding of aluminum thick lap joints: Effect of process parameters on temperature distribution and joints' properties. Materials, 14(16), 4585. https://doi.org/10.3390/ma14164585
  3. Ahmed, M. M. Z., Jouini, N., Alzahrani, B., Seleman, M. M. E., & Jhaheen, M. (2021). Dissimilar friction stir welding of AA2024 and AISI 1018: Microstructure and mechanical properties. Metals, 11(2), 330. https://doi.org/10.3390/met11020330
  4. Ahmed, M. M. Z., Seleman, M. M. E., Fydrych, D., & Çam, G. (2023). Friction stir welding of aluminum in the aerospace industry: The current progress and state-of-the-art review. Materials, 16(8), 2971. https://doi.org/10.3390/ma16082971
  5. Ahmed, M. M. Z., Seleman, M. M. E., Zidan, Z. A., Ramadan, R. M., Ataya, S., & Alsaleh, N. A. (2021). Microstructure and mechanical properties of dissimilar friction stir welded AA2024-T4/AA7075-T6 T-butt joints. Metals, 11(1), 128. https://doi.org/10.3390/met11010128
  6. Boldsaikhan, E., Fukada, S., Fujimoto, M., Kamimuki, K., & Okada, H. (2019). Refill friction stir spot welding of surface-treated aerospace aluminum alloys with faying-surface sealant. Journal of Manufacturing Processes, 42, 113–120. https://doi.org/10.1016/j.jmapro.2019.04.027
  7. Brotzu, A., De Lellis, G., Felli, F., & Pilone, D. (2017). Study of defect formation in Al 7050 alloys. XXIV Italian Group of Fracture Conference, 2017, 3, 246–252. https://doi.org/10.1016/j.prostr.2017.04.015
  8. Bucci, R. J., Warren, C. J., & Starke, E. A. (2000). Need for new materials in aging aircraft structures. Journal of Aircraft, 37(1), 122–129. https://doi.org/10.2514/2.2571

Ayrıntılar

Birincil Dil

İngilizce

Konular

Malzeme Tasarım ve Davranışları

Bölüm

Derleme

Yayımlanma Tarihi

3 Eylül 2026

Gönderilme Tarihi

9 Mart 2026

Kabul Tarihi

11 Ağustos 2026

Yayımlandığı Sayı

Yıl 2026 Cilt: 29 Sayı: 3

Kaynak Göster

APA
Tan, H. O. (2026). MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 29(3), 1386-1398. https://izlik.org/JA58RD62YY
AMA
1.Tan HO. MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi. 2026;29(3):1386-1398. https://izlik.org/JA58RD62YY
Chicago
Tan, Hasan Onur. 2026. “MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW”. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 29 (3): 1386-98. https://izlik.org/JA58RD62YY.
EndNote
Tan HO (01 Eylül 2026) MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 29 3 1386–1398.
IEEE
[1]H. O. Tan, “MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW”, Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, c. 29, sy 3, ss. 1386–1398, Eyl. 2026, [çevrimiçi]. Erişim adresi: https://izlik.org/JA58RD62YY
ISNAD
Tan, Hasan Onur. “MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW”. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 29/3 (01 Eylül 2026): 1386-1398. https://izlik.org/JA58RD62YY.
JAMA
1.Tan HO. MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi. 2026;29:1386–1398.
MLA
Tan, Hasan Onur. “MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW”. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, c. 29, sy 3, Eylül 2026, ss. 1386-98, https://izlik.org/JA58RD62YY.
Vancouver
1.Hasan Onur Tan. MICROSTRUCTURAL EVOLUTION AND MECHANICAL PERFORMANCE OF FRICTION STIR WELDED 7XXX ALUMINUM ALLOYS: A REVIEW. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi [Internet]. 01 Eylül 2026;29(3):1386-98. Erişim adresi: https://izlik.org/JA58RD62YY

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