Effects of processing parameters on tensile properties of selective laser melted 304 stainless steel

Guan, Kai; Wang, Zemin; Gao, Ming; Li, Xiangyou; Zeng, Xiaoyan

doi:10.1016/j.matdes.2013.03.056

Cited by 348 publications

(112 citation statements)

References 19 publications

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“…This indicates that the microstructure anisotropy SLM samples occurring during their building plays an important role in determining tensile properties. The similar results were obtained by the authors of the papers [7][8][9][10] on such SLM equipment as AM250 (Renishaw) and SLM250 (SLM-Solutions). The samples made at a horizontal position showed higher strength properties due to the tensile strain direction parallel to the cut of layers but perpendicular to dendrites.…”

Section: Introductionsupporting

confidence: 84%

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Comparative Mechanical Tests of Samples Obtained by the Domestic Experimental Unit Meltmaster3D-550

Dub¹,

Beregovsky

Tretyakov

et al. 2017

Proceedings of the Scientific-Practical Conference "Research and Development - 2016"

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The current development of the domestic engineering industry is closely connected with the development of new production technologies and metal processing methods, which corresponds to the transition of the industry to the sixth technological order. One of the priorities and strategically important directions of this development is the introduction of additive technologies into existing production chains. Currently, in the developing Russian market of 3D printing, there is a shortage of qualitative domestic industrial equipment and consumables materials (metallic powders). The present development of additive technologies in Russian companies is carried out with costly imported equipment based on the use of expensive imported consumables. To reduce the share of imported equipment in the Russian market effectively, the development of the technology and prototype model of the experimental unit MeltMaster 3D -550 for precision manufacturing of responsible, bulky products with a complex profile based on advanced technologies of additive manufacturing by selective laser melting method (SLM).

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Section: Introductionsupporting

confidence: 84%

“…It should be noted that both the elongation limit of samples UTS, r 0.2 and samples with the layer thickness of 60, 80 and 100 microns is higher than that of the samples produced with the thickness of 120 microns and 150 microns [7,8]. However, the value of elongation for all samples does not reach the standard value of 40%.…”

Section: Introductionmentioning

confidence: 81%

Comparative Mechanical Tests of Samples Obtained by the Domestic Experimental Unit Meltmaster3D-550

Dub¹,

Beregovsky

Tretyakov

et al. 2017

Proceedings of the Scientific-Practical Conference "Research and Development - 2016"

View full text Add to dashboard Cite

show abstract

“…Rehme and Emmelmann [18] stated that the lowest results for both the ultimate tensile strength and the breaking elongation occurred under a 75° angle to the layers, whereas the maximum values for both were examined under a 15° angle. Tolosa, et al [19] found an increase in strength by increasing the inclination angle from 30° to 45°, whereas Guan, et al [20], on the other hand, reported a minimum strength occurring at an 45° inclination. Similarly differing findings also were reported for the in-plane dependencies.…”

Section: Introductionmentioning

confidence: 97%

On the Anisotropic Mechanical Properties of Selective Laser Melted Stainless Steel

Hitzler

Hirsch

Heine

et al. 2017

Preprint

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Abstract:The thorough description of the peculiarities of additively manufactured structures represents a current challenge for aspiring freeform fabrication methods, such as the selective laser melting (SLM). All of which have an immense advantage in the fast fabrication (no special tooling or moulds required), the geometrical flexibility in the design of components, and their efficiency when only low quantities are required. However, designs demand the precise knowledge of the material properties, which in case of additively manufactured structures are anisotropic and, under certain circumstances, in addition of an inhomogeneous nature. Furthermore, these characteristics are highly dependent on the fabrication settings. Within this study, the anisotropic tensile properties of selective laser melted stainless steel (1.4404, 316L) are investigated: The Young's modulus ranged from 148 GPa to 227 GPa, the ultimate tensile strength from 512 MPa to 699 MPa and the breaking elongation ranged, respectively, from 12% to 43%. The results were compared to related studies, in order to classify the influence of the fabrication settings. Furthermore, the influence of the chosen raw material was addressed by comparing deviations on the directional dependencies reasoned by differing microstructural developments during manufacture. Stainless steel was found to possess its maximum strength at a 45° layer versus loading offset, which is precisely where AlSi10Mg was previously reported to be at its weakest.

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“…Because of its good corrosion resistance, formability, excellent plasticity and toughness, the 304L metal products could perform well in high temperature conditions, the fabricating performance is excellent as well [1]. Especially, 304L stainless steel is a significant structural material in nuclear power equipment [2], also it is widely used in chemical industry, furniture decoration industry and medical industry.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties of 304L steel fabricated by arc additive manufacturing

Liu

et al. 2017

MATEC Web Conf.

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Abstract. For 304L large structural parts used in nuclear power, it is hard and costly to fabricate and machine traditionally. Wire arc additive manufacturing (WAAM) has low cost and high material utilization, which provides an efficient way to fabricate the large structural parts. So in this study, WAAM is used to fabricate the parts of 304L stainless steel. Through the tensile test and metallographic analysis, the mechanical properties and microstructure of the 304L stainless steel fabricated by WAAM were explored. The results indicate that with the layers depositing, the cooling rate becomes slower, the dendrites become thicker and the morphology becomes more stable. Due to the existence of dendrites, the grain boundary strengthening effect is different between the transverse direction and longitudinal direction, and resulting in anisotropy of mechanical properties. However, the mechanical properties of the parts correspond to the forged piece, which lays the foundation for future applications.

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Effects of processing parameters on tensile properties of selective laser melted 304 stainless steel

Cited by 348 publications

References 19 publications

Comparative Mechanical Tests of Samples Obtained by the Domestic Experimental Unit Meltmaster3D-550

Comparative Mechanical Tests of Samples Obtained by the Domestic Experimental Unit Meltmaster3D-550

On the Anisotropic Mechanical Properties of Selective Laser Melted Stainless Steel

Microstructure and mechanical properties of 304L steel fabricated by arc additive manufacturing

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