Fatigue Characteristics of Selected Light Metal Alloys

Cieśla, M.; Junak, G.; Marek, A.

doi:10.1515/amm-2016-0051

Cited by 10 publications

(5 citation statements)

References 6 publications

(5 reference statements)

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“…In addition, magnesium alloys have good specific strength due to their light weight [2,3]. In particular, the magnesium alloy AZ31 is more durable than the aluminum alloy 2017A at low fatigue cycles with stress amplitudes of less than 150 MPa [3,4]. However, the processability of magnesium alloy is complicated due to the narrow temperature range between the melting and boiling points [5] and due to the high affinity of magnesium alloys for oxygen [6].…”

Section: Introductionmentioning

confidence: 99%

Processing of AZ91D Magnesium Alloy by Laser Powder Bed Fusion

et al. 2023

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Magnesium alloys are perspective materials for use in transportation, aerospace and medical industries, mainly because of their good load-to-weight ratio, biocompatibility and biodegradability. For the effective production of magnesium components by the laser powder bed fusion (LPBF) process, the process parameters with verified mechanical properties need to be determined. In this paper, we prepared bulk samples with a high relative density of AZ91D magnesium alloy. Tensile tests were then performed on LPBF samples to evaluate the mechanical properties. Our results show that the bulk samples achieved a relative density >99%, in multiple planes over the full sample height, while the mechanical properties reached values of YS = 181 MPa, UTS = 305 MPa and A5.65 = 5.2%. The analysis by scanning electron microscope revealed fine β-Mg17Al12 particles in the microstructure, which have a positive effect on the mechanical properties. The chemical composition of magnesium alloy AZ91D changed slightly during processing by LPBF due to the evaporation of the Mg content. However, the resulting composition still corresponds to the range specified by the ASTM standard for the AZ91D alloy.

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Section: Introductionmentioning

confidence: 99%

Processing of AZ91D Magnesium Alloy by Laser Powder Bed Fusion

et al. 2023

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“…The sample has no elements with magnetic properties, so it will not be affected by an external magnetic field. However, if the titanium alloy has 26 Fe, it may exhibit a hysteresis loop [33]. Neither samples contains aluminium.…”

Section: Elemental Composition Of Stainless-steel and Titanium Alloy ...mentioning

confidence: 99%

Magnetic Remanence of Stainless Steel and Titanium Alloy Orthopaedic Implants

Jusoh

Noor²,

Tajudin³

et al. 2021

Mal. J. Fund. Appl. Sci.

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Stainless steel and titanium alloys are common materials for orthopaedic implants. However there is a lack of information and studies on magnetic remanence of implants used in clinical practice. The aims of this study are to investigate the composition and the presence of magnetic remanence for these two orthopaedic implant materials. These two factors may cause implant instability and heat problems as well as degradation of the images quality if the patients undergo magnetic resonance imaging (MRI) examination. The magnetic hysteresis loop and remanence status of stainless steel and titanium alloy orthopaedic implants were investigated with a vibrating sample magnetometer (VSM). Both samples of stainless steel and titanium alloy had been exposed to external magnetic fields up to 1 T (10000 G) and 1.4 T (14000 G), respectively. The compositions of these two orthopaedic implant materials were studied using a scanning electron microscope with energy dispersive X-ray analysis (SEM-EDX). The results of the study demonstrated that ferrous and nickel compositions in stainless steel alloy orthopaedic implants contributed to the residual magnetism, as shown in the hysteresis loop. The titanium alloy orthopaedic implant sample does not contain any ferromagnetic elements. After exposure to a magnetic field, the stainless steel values of retentivity, coercivity and magnetisation are significantly higher compared to those of the titanium alloy. The stainless steel orthopaedic implant sample demonstrates a typical hysteresis loop that suggests the existence of magnetic remanence. In contrast, the titanium alloy orthopaedic implant sample showed no significant remanence phenomenon. By considering the existence of magnetic remanence in the implant is important as potential effect on the MRI image quality.

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“…Certain limitations and differences between the use of magnesium materials and the then commonly used aluminium alloys were also considered at that time [7]. One of the recent findings in this field is that compared to aluminium alloy 2017A, the AZ31 magnesium alloy is more resistant to low-cycle fatigue as well as high-cycle fatigue at stresses lower than 150 MPa [8]. Since the densities of magnesium alloys and plastics are similar, Mg alloys also take the place of plastics to ensure higher stiffness [9].…”

Section: Introductionmentioning

confidence: 99%

The potential of SLM technology for processing magnesium alloys in aerospace industry

Kurzynowski

Pawlak

Smolina

2020

Archiv.Civ.Mech.Eng

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Selective Laser Melting (SLM) of magnesium alloys is the technology undergoing dynamic development in many research centres. The results are promising and make it possible to manufacture defect-free material with better properties than those offered by the manufacturing technologies used to date. This review aims to evaluate present state as well as main challenges of using Laser Powder Bed Fusion (L-PBF) for processing magnesium alloys as an alternative way to conventional technologies to manufacture parts in the aerospace industry. This literature review is the first one to outline information concerning the potential to use magnesium alloys in the aerospace industry as well as to summarise the results of magnesium alloy processing using AM technologies, in particular L-PBF. The available literature was reviewed to gather information about: the use of magnesium alloys in the aerospace industry-the benefits and limitations of using magnesium and its alloys, examples of applications using new processing methods to manufacture aerospace parts, the benefits and potential of using L-PBF to process metallic materials, examples of the use of L-PBF to manufacture aerospace parts, and state-of-the-art research into L-PBF processing of magnesium and magnesium alloys.

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Fatigue Characteristics of Selected Light Metal Alloys

Cited by 10 publications

References 6 publications

Processing of AZ91D Magnesium Alloy by Laser Powder Bed Fusion

Processing of AZ91D Magnesium Alloy by Laser Powder Bed Fusion

Magnetic Remanence of Stainless Steel and Titanium Alloy Orthopaedic Implants

The potential of SLM technology for processing magnesium alloys in aerospace industry

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