Laser additive manufacturing of ODS CuCrZr TPMS lattice structures with enhanced mechanical-thermal performance
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2025-07-01 |
| Journal | Journal of Materials Research and Technology |
| Authors | Yi Li, Xiaoqiang Wang, Xue Li, Xianglong Dai, Yuxuan Shi |
| Citations | 1 |
Abstract
Section titled âAbstractâTo address the urgent demand for efficient thermal management components in aerospace and related fields, this study proposes an optimization method integrating material composition and macrostructural design. Utilizing this approach, a triply periodic minimal surface (TPMS) lattice structure composed of oxide dispersion-strengthened CuCrZr alloy was fabricated via laser powder bed fusion (LPBF) technology. In the material composition design, the influence of Y2O3 doping (ranging from 0 to 2.0 wt%) on the mechanical and thermal properties of CuCrZr composites was systematically investigated. The results indicate that 0.5 wt% Y2O3 exhibits the best overall performance, with its room temperature ultimate tensile strength and thermal conductivity improved by 16.2 % and 8.11 %, respectively, compared to the undoped alloy. The enhanced mechanical properties primarily result from the synergy of Y2O3-induced precipitation strengthening and grain refinement, while the improved thermal conductivity stems from reduced metallurgical defects and optimized heat conduction pathways. At the structural design level, four TPMS configurationsâGyroid, Diamond, Primitive, and I-WPâwere evaluated through a combination of experiments and simulations. In these structures, the diamond lattice structure exhibits excellent thermal (achieving Nusselt number of 740.75 at Reynolds number of 1445.5) and mechanical properties (with elastic modulus of 1127.53 MPa and peak plateau stress of 18.67 MPa). Its high specific surface area and tortuous flow channels enhance airflow disturbance, while its shear failure mode offers advantages in load-bearing capacity and energy absorption. The proposed optimization method facilitates integrated fabrication of high-load, high-efficiency components and lightweight, high-strength TPMS lattice structures for thermal management.
Tech Support
Section titled âTech SupportâOriginal Source
Section titled âOriginal SourceâReferences
Section titled âReferencesâ- 2021 - Recent active thermal management technologies for the development of energy-optimized aerospace vehicles in China [Crossref]
- 2019 - A review on tube external heat transfer for passive residual heat removal heat exchanger in nuclear power plant [Crossref]
- 2023 - Design and optimization of heat sinks for the liquid cooling of electronics with multiple heat sources: a literature review
- 2022 - Heat transfer effectiveness characteristics maps for additively manufactured TPMS compact heat exchangers [Crossref]
- 2025 - Multi-objective optimization of an offset strip fin heat exchanger applied to fuel cell electric vehicles for cooperative cooling [Crossref]
- 2024 - Numerical investigation on the effect of porosity aluminum foam on the heat transfer characteristics of a driven cold plate water sublimator [Crossref]
- 2024 - The structural and mechanical properties of open-cell aluminum foams: dependency on porosity, pore size, and ceramic particle addition [Crossref]
- 2003 - Metal foams as compact high performance heat exchangers [Crossref]
- 2022 - Triply periodic minimal surface (TPMS) porous structures: from multi-scale design, precise additive manufacturing to multidisciplinary applications [Crossref]
- 2023 - Microstructure, mechanical properties, and thermal stability of Al-Al2O3 nanocomposites consolidated by ECAP or SPS from milled powders [Crossref]