Investigation on the microstructure, mechanical property and corrosion behavior of the selective laser melted CoCrW alloy for dental application

Study on the microstructure, mechanical property and residual stress of SLM Inconel-718 alloy manufactured by differing island scanning strategy

“…As the small island size was applied, the more numbers of criss-cross regions of neighboring islands were created. In our previous works, it has been found that the criss-cross areas were the regions where unmelted powders preferentially remained [25], thereby more pores would be occurred in these regions. The unmelted powders were believed to be a critical issue leading to pores in SLM.…”

A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector

“…[151] It was emphasized that heat treatments can lead to a heterogeneous distribution of Si agglomerations, whereby a higher concentration was found in the cellular boundaries, such as the hatch overlaps (see Figure 3), however, a post age hardening treatment was found to remove the process induced inhomogeneities to a great extent. [195] [195] [227] CoCrMo (60-32-8) 422 43.1 [228] CoCrMoMn (65-28-5-1) 354-391 LP and SS varied [110] EOS high carbon CoCr MP1 410 [51] CoCrW (60.5-28-9) 564-570 line and island scanning [229] in vacuum d In the aeronautics industry the part quality has to be greater as 99% relative density. [195] [195] [227] CoCrMo (60-32-8) 422 43.1 [228] CoCrMoMn (65-28-5-1) 354-391 LP and SS varied [110] EOS high carbon CoCr MP1 410 [51] CoCrW (60.5-28-9) 564-570 line and island scanning [229] in vacuum d In the aeronautics industry the part quality has to be greater as 99% relative density.…”

“…Comparison of averaged tensile properties for cobalt based raw materials; all results refer to samples in the non-heat treated condition; see details to the nomenclature in Table 1. [163,253] CoCrW (60.5-28-9) 825-850 1116-1158 9.8-10.0 line and island scanning strategy [229] CoCrWMo (63.9-25.3-5.5-5.2) 884 AE 9 1308 AE 11 10.2 AE 0.4 [254] CoCrMoW (61.5-26-6-5) 485-691 996-1078 8.3-39 Wirobond Cþ; Φ ¼ 90 [205] CoCrNiW (54.7-23.5-10-7) 193-228 948-1203 Mar-M509; Φ ¼ 0 , 90 ; Θ ¼ 0 , 45 [231] A dedicated publication to this topic can be found here. [205] All results refer to samples in the heat treated condition; see details to the nomenclature in Table 1.…”

Additive Technology: Update on Current Materials and Applications in Dentistry

“…When reviewing available studies, it appears that they have investigated all these properties well enough. For tensile testing of DMLS‐fabricated CoCr, most did not use specimens with dimensions or methodology according to standardized testing criteria . Others did not analyze the adhesion strength between porcelain and metal, although it is one of the most common modifications to CoCr metals in dental prostheses and is also the most likely site of failure .…”