Analysis of laser direct stainless steel powder deposition on Ti6Al4V substrate

Rashkovets, Mariia; Mazzarisi, Marco; Никулина, А. А.; Casalino, Giuseppe

doi:10.1016/j.matlet.2020.128064

Cited by 13 publications

(4 citation statements)

References 11 publications

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“…However, due to the metallurgical incompatibility between Ti and steel, brittle intermetallic compounds (IMCs) are easily formed at the interface during direct fusion welding. This leads to difficulties in achieving a reliable welded joint of Ti/steel bimetallic sheets [5][6][7]. Relevant research shows that the brittle FeTi and Fe 2 Ti, which have high hardness values of ~600 HV and ~1000 HV, respectively [8], significantly reduce the mechanical properties of Ti/steel joints.…”

Section: Introductionmentioning

confidence: 99%

Laser Welding of Titanium/Steel Bimetallic Sheets with In Situ Formation of Fex(CoCrNiMn)Tiy High-Entropy Alloys in Weld Metal

Liu,

Ma,

Xue

et al. 2024

Materials

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Due to the notable disparities in the physical and chemical characteristics between titanium and steel, the direct fusion of titanium/steel bimetallic sheets results in a considerable formation of fragile intermetallic compounds, making it difficult to achieve excellent metallurgical welded joints. In this study, a multi-principal powder of CoCrNiMn was designed and utilized as a filler material in the welding of the TA1/Q345 bimetallic sheet. It was expected that the in situ formation of Fex(CoCrNiMn)Tiy high-entropy alloys would be achieved using the filler powders, combined with the Ti and Fe elements from the melting of the TA1 and Q345 so as to restrain the generation of Fe-Ti IMCs and obtain the promising welded joints of the TA1/Q345 bimetallic sheet. An interesting finding is that high-entropy alloys were successfully obtained in the weld metal. The Fe-Ti intermetallic compounds at the welding interface were significantly reduced. The tensile strength was ~293 MPa, accounting for 60% of the strength of the base metal. Dimples were observed at the fracture of the welded joint.

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Section: Introductionmentioning

confidence: 99%

Laser Welding of Titanium/Steel Bimetallic Sheets with In Situ Formation of Fex(CoCrNiMn)Tiy High-Entropy Alloys in Weld Metal

Liu,

Ma,

Xue

et al. 2024

Materials

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“…Most studies on the preparation of dissimilar hybrid or bimetallic materials using powder-based methods focus on direct deposition technologies, such as dissimilar alloy walls fabricated from A410L, A316-L stainless steels and zirconium [23], or deposition of AISI 316 stainless steel on Ti6al4V substrate [24]. One of the powderless technologies which has recently been used for this purpose is wire arc additive manufacturing, which was used to produce hybrid parts from Ni6082 alloy and YS308L stainless steel [25], Ti6Al4V and AlSi5 alloys [26], and 309L stainless steel and mild steel [27].…”

Section: Introductionmentioning

confidence: 99%

Heat treatment of bimetals produced by selective laser melting of MS1 maraging steel on conventionally produced 42SiCr martensitic steel

Kučerová

Jeníček

Zetková

et al. 2022

Archiv.Civ.Mech.Eng

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One approach to producing hybrid bimetallic parts is to additively manufacture a new material onto a conventionally manufactured base material. This technique can expand the potential applications of additive manufacturing and offer new solutions for the engineering design of hybrid parts. In this work, laser powder bed fusion was used to deposit MS1 maraging steel on a conventionally produced (cast and hot-rolled) 42SiCr martensitic steel base material. Despite the profoundly different chemical compositions and hardening behaviours of these materials, their yield and ultimate tensile strengths in solution-annealed and hardened conditions are quite similar. Various heat treatments were performed to optimise the mechanical properties of the resulting hybrid part. The highest yield strength of 1400 MPa and tensile strength of 1483 MPa was achieved with a post-processing heat treatment which consisted of annealing at 900 °C for 25 min followed by water quenching and subsequent very short tempering at 490 °C. In the tensile tests, all the hybrid parts, regardless of heat treatment parameters, fractured within the base material and neither in the joint nor in the adjacent heat-affected zone. The interface areas and the microstructures of both materials were documented in detail in the as-built state and also after the heat treatment.

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“…In Laser Direct Metal Deposition (DMD), the laser beam melts the powder feedstock and a thin layer of the metallic substrate and generates a melt pool of powder and substrate materials. Thus a layer of metal is deposited on the substrate during relative movement between the substrate and the laser nozzle [1,2]. The powder particles are delivered into the melt pool by carrier gas, and the melt pool is protected from oxidation by a shielding gas.…”

Section: Introductionmentioning

confidence: 99%

Parameters Development for Optimum Deposition Rate in Laser DMD of Stainless Steel EN X3CrNiMo13-4

Dalaee

Cerrutti

Dey

et al. 2021

Lasers Manuf. Mater. Process.

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Laser Direct Metal Deposition (DMD) has been developed as a manufacturing process to deposit coatings on existing materials and proves advantageous in Additive Manufacturing (AM) of complex and precise components. However, it is necessary to carefully determine the proper process parameter combinations to make this method economically viable for industries. The intent of this study is to address enhancement in productivity of laser DMD of stainless steel EN X3CrNiMo13-4. Accordingly, the effects of the main laser process parameters of laser power P, scan speed v, powder flow rate $$\dot{\mathrm{m}}$$ m ˙ , and spot diameter s on track geometries and build-up rate are discussed. The regression analysis is conducted to derive correlations between the combined set of main parameters and deposition rate. The results show a good linear regression correlation of R2 >0.9 for the geometrical characteristic of aspect ratio, dilution, and deposition rate. The constructed processing map, using linear regression equations, presents proper process parameters selection in connection with deposition rate, aspect ratio, and dilution rate.

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Analysis of laser direct stainless steel powder deposition on Ti6Al4V substrate

Cited by 13 publications

References 11 publications

Laser Welding of Titanium/Steel Bimetallic Sheets with In Situ Formation of Fex(CoCrNiMn)Tiy High-Entropy Alloys in Weld Metal

Laser Welding of Titanium/Steel Bimetallic Sheets with In Situ Formation of Fex(CoCrNiMn)Tiy High-Entropy Alloys in Weld Metal

Heat treatment of bimetals produced by selective laser melting of MS1 maraging steel on conventionally produced 42SiCr martensitic steel

Parameters Development for Optimum Deposition Rate in Laser DMD of Stainless Steel EN X3CrNiMo13-4

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