Influence of multiple laser shock peening treatments on the microstructure and mechanical properties of Ti−6Al−4V alloy fabricated by electron beam melting

Lan, Liang; Xin, Ruyi; Jin, Xinyuan; Gao, Shuang; He, Bo

doi:10.1007/s12613-021-2322-2

Cited by 12 publications

(2 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These interactions can introduce pores and compromise both the formability of the layers and the resulting material properties. Furthermore, based on the literature survey [121][122][123][124][125][126][127][128][129][130][131][132][133][134][135][136], it becomes clear that the LSP deformation zone penetration (measuring 0.7 ± 0.20 mm) is adequate to achieve grain size refinement in laser-and electron beam-based DED as well as PBF. However, its impact is significantly limited in arc plasma-based DED due to the extensive deposition penetration [137][138][139] since the previously deposited layer is almost entirely remelted.…”

Section: Laser Shock Peeningmentioning

confidence: 99%

“…According to the literature surveyed [121][122][123][124][125][126][127][128][129][130][131][132][133][134][135][136], in most studies, the LSP was applied after part fabrication; i.e., as mechanical surface treatment, and its effect on fatigue life, quasi-static mechanical properties, corrosion resistance, and Fig. 14 a Laser shock peening (LSP) shockwaves generation [198], b free path planning [199], and c intermittent LSP process coupled to laser PBF [143] residual stress relief was evaluated.…”

Section: Laser Shock Peeningmentioning

confidence: 99%

See 1 more Smart Citation

Directed energy deposition + mechanical interlayer deformation additive manufacturing: a state-of-the-art literature review

Farias,

dos Santos,

Oliveira

2024

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Directed energy deposition (DED) additive manufacturing systems have been developed and optimized for typical engineering materials and operational requirements. However, parts fabricated via DED often demonstrate a diminished material response, encompassing inferior mechanical properties and heat treatment outcomes compared to traditionally manufactured components (e.g., wrought and cast materials). As a result, parts produced by DED fail to meet stringent specifications and industry requirements, such as those in the nuclear, oil and gas, and aeronautics sectors, potentially limiting the industrial scalability of DED processes. To address these challenges, systems integrating DED with interlayer (cold or hot) mechanical deformation (e.g., rolling and hammering/peening, forging) have been developed. These systems refine the microstructure, mitigate the typical crystallographic texture through static and/or dynamic recrystallization, and enhance mechanical properties and heat treatment responses without altering material specifications. In this regard, the present state-of-the-art review reports the DED + interlayer mechanical deformation systems and their variants, and their potential and limitations, providing a critical analysis to support the development and adaptation of this technology to overcome the process and material limitations that currently prevent the large-scale industrial adoption of DED processes. Furthermore, a detailed description of the grain size refinement mechanisms induced by interlayer mechanical deformation and their respective effects on the mechanical properties of commonly used 3D-printed engineering alloys (e.g., Ti-6Al-4V, Inconel 718, various low-alloy steels, AISI 316L stainless steel, and Al-based series 2xxx) is comprehensively analyzed.

show abstract