Effect of in-situ layer-by-layer rolling on the microstructure, mechanical properties, and corrosion resistance of a directed energy deposited 316L stainless steel

Kan, Wen Hao; Jiang, Derui; Humbert, Matthew S.; Gao, Xiang; Bhatia, Vijay K.; Proust, Gwénaëlle; Zhu, Yuman; Hodgson, Peter; Huang, Aijun

doi:10.1016/j.addma.2022.102863

Cited by 13 publications

(5 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The strain and strain rate were controlled via the z-axis movement (built direction) and the moving speed of the substrate, respectively. For the deposition of Ti-6Al-4V alloy and Ni-based superalloy 718, the load cells registered a rolling load of 1.3 and 3 kN, respectively, which are significantly smaller than the rolling loads used during cold rolling (up to 160 kN) [31,69,89,90] and similar to that reported by Kan et al [91] and Zhang et al [32] (Fig. 5).…”

Section: Rollingsupporting

confidence: 85%

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

Section: Rollingsupporting

confidence: 85%

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

show abstract

“…Due to the high rolling load required for cold deformation, the degree of rolling deformation in WAAM cannot completely refine the whole layer of the deposited material, resulting in microstructural inhomogeneity and bringing uncertainty to the service stability of the components. Huang et al [35][36][37] have studied the effect of in-situ micro-rolling during LDED process, as shown schematically in figure 2 Bi et al from Jihua Laboratory have developed an in-situ rolling assisted LDED process by adding a roller next to the deposition head. The rolling unit is integrated into the machine tool and the collaborative movement of the machine tool is synchronized with a robot mounted laser/powder deposition head.…”

Section: In-situ Rolling Assisted Ldedmentioning

confidence: 99%

Hybrid directed energy deposition process coupled with plastic deformation

Yang,

Wang,

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Laser directed energy deposition (LDED) process has unique advantage in rapid forming of large-sized metal components, gradient material/structural components, or repairing/remanufacturing worn parts. However, the high residual stress and strong anisotropy in mechanical properties of the as-deposit components limit the application of LDED technology in the manufacturing of key structural components. To overcome these problems, various hybrid additive manufacturing (HAM) technologies have been developed, such as plastic deformation, ultrasonic or magnetic field assisted LDED processes to improve the quality and the mechanical properties, where these coupled processes are carried out either simultaneously or cyclically with the LDED process. The hybrid additive manufacturing, while retaining the advantages of individual forming process, avoids the mutual interference between each process and reducing the adverse effects generated if used separately. Hybrid additive manufacturing processes fundamentally change the underlying physical mechanisms of molten pool dynamics, microstructural evolution, temperature and thermal stress gradient in additive manufacturing, thereby optimizing the microstructure and performance of the manufactured components. In this paper, the key technical features of the hybrid additive manufacturing process coupled with plastic deformation were described in details, and the resulting differences in microstructure, residual stress, and mechanical properties of the prepared samples were systematically analyzed. The developing trend of hybrid additive manufacturing processes in coupling mechanisms, parameter optimization, and equipment have been discussed.

show abstract

“…[ 8 ] In fact, significant efforts have been made to improve the mechanical properties of AM stainless steels in the last decades. For example, Kan et al [ 9 ] established a microrolling device to refine grains during AM process. The test resuls indicated that yield strength (YS) and hardness of in situ rolled AM 316L were improved by ≈3% and 23%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Simultaneously Improving the Strength and Plasticity of Additively Manufactured 316L Stainless Steel by Adding Aluminum

Tian,

Li,

et al. 2024

Adv Eng Mater

View full text Add to dashboard Cite

Due to the special layer‐by‐layer printing process of additive manufacturing (AM), the heat dissipation in the printed material tends to flow mainly along the building direction, which results in the formation of coarse columnar grains in AM metals. The coarse grains is detrimental to the mechanical properties of AM metals, and is not conducive to the lightweight development of AM metal components. This article proposed a printing strategy for adding aluminum to 316L stainless steel. Based on the aluminum reinforced strategy, low melting point MnSiO3 particles were transformed into high melting point Al‐containing particles (such as Al2O3), and the grain size of 316L stainless steel produced by direct energy deposition (DED) was refined, resulting in a significant improvement of tensile strength. What’s more, the increase in tensile strength of Al‐reinforced 316L did not sacrifice its plasticity. Attributed to the twinning‐induced plasticity (TWIP) effect and good adhesion between Al2O3 particles and matrix, the plasticity of Al‐reinforced 316L was synchronously improved. To be more specific, compared to DED‐316L without adding Al, the yield strength and tensile strength of samples with adding 0.5%wt Al were individually improved by 14.8% and 16.2%, at same time, the uniform elongation and total elongation were increased by 80.4% and 13%, respectively. The printing strategy proposed in this article is expected to provide reference for the strengthening and toughening of AM metals, thereby contributing to the lightweight development of AM components.This article is protected by copyright. All rights reserved.

show abstract

Effect of in-situ layer-by-layer rolling on the microstructure, mechanical properties, and corrosion resistance of a directed energy deposited 316L stainless steel

Cited by 13 publications

References 53 publications

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

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

Hybrid directed energy deposition process coupled with plastic deformation

Simultaneously Improving the Strength and Plasticity of Additively Manufactured 316L Stainless Steel by Adding Aluminum

Contact Info

Product

Resources

About