Influence of ausferrite microstructure decomposition on the corrosion properties of austempered ductile iron

Dervisic, S.; Avdušinović, Hasan; Gigović-Gekić, Almaida; Kasapović, D.; Pašić, S.

doi:10.17222/mit.2019.224

Cited by 3 publications

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“…Austempered ductile iron (ADI) is an extraordinary material which received significant attention after the research findings about its excellent combination of mechanical properties. Owing to its relatively lower manufacturing cost and excellent mechanical properties, it has become a suitable substitution for the commonly used steel forging and few alloys of aluminium (Olawale & Oluwasegun, 2016;Pereiraa et al, 2020;Sehzudin et al, 2020). The values for heat treatment parameters have to be carefully selected for austempering treatment as it affects the microstructure and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of austempering temperature and manganese content on the impact energy of austempered ductile iron

et al. 2021

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Austempered ductile iron (ADI) is a revolutionary material that has the ability to replace some of the commonly used steel forgings. ADI is being used in wide range of products because of the availability of this material with relatively lesser cost and its higher strength to weight ratio. Manganese is an important alloying element added to ductile iron for improving the hardenability. However, the amount of manganese has to be carefully selected to avoid any adverse effect on the mechanical properties. In this study, impact energy and tensile properties are determined for the various austempering temperatures and manganese content. Statistical analysis is carried out to determine the relative contribution of each factors on the results. Higher impact energy is observed at the higher austempering temperature of 420°C. No adverse effect on impact energy is observed for the addition manganese up to 1 wt%. Response surface methodology is used to optimize the parameters for obtaining the superior combination of ultimate tensile strength and impact energy. Regression equations are fit to predict the impact energy and ductility of manganese alloyed ADI.

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Section: Introductionmentioning

confidence: 99%

Effect of austempering temperature and manganese content on the impact energy of austempered ductile iron

et al. 2021

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“…Gigovic-Gekic et al reported that an increase in the delta ferrite caused an increase in the strength and a decrease in the ductility of steel when ferrite percentage increased beyond 6%. 31 The fracture occurred at the outer boundary of HAZ due to a decrease in ductility, as shown in Figure 13(c).…”

Section: Evaluation Of Mechanical Propertiesmentioning

confidence: 97%

Effect of travel speed on the microstructure and mechanical properties of laser beam welded nitronic-50 stainless steel joints

Palanisamy

Rajendran

Kumar

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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In this study, fiber laser beam welding was used to join 3 mm-thick nitronic-50 stainless steel. The effect of travel speed on the mechanical, microstructural, and corrosion properties of the weld joints was studied. The experimental findings reveal that travel speed significantly affected the size of bead geometry and the fusion boundary of the weld joints. The microstructure of columnar grains transformed into equiaxed dendritic grains at the center of the weld nugget due to fast cooling at higher travel speeds. The increase in ferrite content was due to the incomplete transformation of ferrite to austenite at higher travel speeds, which led to higher strength and microhardness in the weld joints. Similarly, the corrosion studies demonstrate that the weld joints made at higher travel speeds have superior corrosion resistance due to a higher fraction of equiaxed dendritic grains and smaller dendrites with less inter-dendritic arm spacing.

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Effect of Austempering Conditions on the Corrosion Behavior of HSADI Alloyed with Niobium

Navarro,

González,

Valdez

et al. 2024

Inter Metalcast

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Influence of ausferrite microstructure decomposition on the corrosion properties of austempered ductile iron

Cited by 3 publications

References 0 publications

Effect of austempering temperature and manganese content on the impact energy of austempered ductile iron

Effect of austempering temperature and manganese content on the impact energy of austempered ductile iron

Effect of travel speed on the microstructure and mechanical properties of laser beam welded nitronic-50 stainless steel joints

Effect of Austempering Conditions on the Corrosion Behavior of HSADI Alloyed with Niobium

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