The Effect of Cr Content on the Glass Forming Ability of Fe68-xCrxNb8B24 (x =8,10,12) Alloys

Mendes, Marcio Andreato Batista; Melle, Ana Karla; Souza, Carlos Alberto Caldas de; Kiminami, Cláudio Shyinti; Cava, R.D.; Bolfarini, Claudemiro; Filho, Walter José Botta

doi:10.1590/1980-5373-mr-2016-0290

Cited by 5 publications

(5 citation statements)

References 15 publications

(10 reference statements)

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“…The addition of Co induces mechanical hardening, manifested in an increase of indentation testing hardness (HIT) and indentation elastic modulus (EIT). ) has a positive influence on hardness and elastic modulus, due to a more densely packed structure which was also noticed in other Fe-based BMGs [19], [22], [23].…”

Section: Results and Discusionssupporting

confidence: 58%

“…It was found that proportions higher than 7% at. have a negative influence on corrosion resistance and coercivity [20], [21], [22], [23], [24], [25], [26], [27]. The present paper reports the effects of Co-Cr substitution up to 7% at.…”

Section: Introductionmentioning

confidence: 77%

“…Chromium (Cr) in Fe-based BMGs leads to increase the mechanical strength and hardness and in particular, provides excellent wear and corrosion performance even under relatively low percentage compared with stainless steels but affects negatively the GFA and soft magnetic properties [22], [23].…”

Section: Introductionmentioning

confidence: 99%

“…Co has almost the same atomic radius as Cr (Co: 125 pm and Cr: 128 pm) and Cobalt is a ferromagnetic element meanwhile Cr is an anti-ferromagnetic element. Co has higher values of the atomic magnetic moment and saturation magnetization than Cr and also a stronger corrosion resistance than Fe element [22]. Therefore, it can be assumed that partial substitution of Cr with Co will increase the ferromagnetic element concentration and increase the total atomic magnetic moment.…”

Section: Introductionmentioning

confidence: 99%

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Effect of partial substitution of Cr with Co on glass forming ability, mechanical and magnetic properties in Fe48Mo14Cr15-xCoxB6P8Si7Y2 bulk metallic glasses

et al. 2022

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Fe-based BMGs are well known for its attractive combination of structural, magnetic and corrosion properties. These alloys are widely used in industry because of low price and good glass forming ability (GFA). In this paper, the effect of partial substitution of Cr with Co on GFA, mechanical and magnetic properties of Fe48Mo14Cr15-xCoxB6P8Si7Y2 bulk metallic glasses was studied. The samples were prepared by copper mold casting technique in rod form. The elaborated alloys were structurally investigated by X-Ray diffraction (XRD) and differential scanning calorimetry (DSC), while the mechanical properties were investigated by compressive and nanoindentation tests. Also, the magnetic properties were investigated. The GFA was estimated by several criterion or parameters (reduced transition temperature Trg, ΔTx, α, β, γ and δ parameters). It was found that the addition of Co instead of Cr leads to a slight increase of the glass forming ability of Fe-Mo-Cr-B-P-Si-Y family. Also, an increase in magnetic properties, hardness, elastic modulus and compressive strength has been noted.

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Section: Results and Discusionssupporting

confidence: 58%

Section: Introductionmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of partial substitution of Cr with Co on glass forming ability, mechanical and magnetic properties in Fe48Mo14Cr15-xCoxB6P8Si7Y2 bulk metallic glasses

et al. 2022

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“…Contributions in Fe-based alloys are in references [25][26][27][28][29][30][31][32][33][34][35][36][37][38], which include those of Fe-B-Nb, Fe-Nb-Al-Si-B, Fe-Cr-Nb-B, Fe-Co-B-Si-Nb, Fe-Co-Cr-M-Si-B-Y (M = Mo, Nb) and Fe-Nb-Zr-Ti-B-Cu, being evaluated their thermal stabilities and properties such as corrosion resistance; and more recently in the references [25,26,28,[39][40][41] dealing with the development of corrosion and wear resistant systems for coating applications.…”

Section: Glass Forming Ability and Fe-based Glassesmentioning

confidence: 99%

Development of Fe-based glass former alloys for thermal spray coatings with optimized corrosion and wear properties

Kiminami¹,

Koga²,

Bolfarini³

et al. 2023

Tecnol. Metal. Mater. Min.

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Corrosion and wear of alloys is a costly and hidden safety risk for components in petrochemical, agroindustry, and mining activities, which are key segments in Brazil and in many countries. Accelerating the development of highperformance and durable ferrous alloys and their insertion into engineering structural applications has never been more important. Glass former steels have drawn considerable attention in recent years, due to the remarkable combinations of strength and degradation control that can be achieved by tailoring corrosion and wear resistances, which places these alloys amongst the durable ferrous alloy ever developed. Recent results from our group indicate that coatings using these alloys can be produced from commercial grade precursors and industrially available thermal spraying routes. The development of Fe-based bulk metallic glass (BMG) alloys for degradation control will open the door to next-generation coatings with unprecedented combinations of corrosion and wear resistances. This work summarizes the development of Fe-based glassy coatings for corrosion and wear control performed in our research group in the last 17 years covering: i) glass forming ability of alloys, ii) development of Fe-based glass former alloys, iii) thermal spraying of Fe-based glass former alloys, and iv) scientific and technological impacts of this research.

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An Overview of Thermally Sprayed Fe-Cr-Nb-B Metallic Glass Coatings: From the Alloy Development to the Coating’s Performance Against Corrosion and Wear

et al. 2022

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The Effect of Cr Content on the Glass Forming Ability of Fe68-xCrxNb8B24 (x =8,10,12) Alloys

Cited by 5 publications

References 15 publications

Effect of partial substitution of Cr with Co on glass forming ability, mechanical and magnetic properties in Fe48Mo14Cr15-xCoxB6P8Si7Y2 bulk metallic glasses

Effect of partial substitution of Cr with Co on glass forming ability, mechanical and magnetic properties in Fe48Mo14Cr15-xCoxB6P8Si7Y2 bulk metallic glasses

Development of Fe-based glass former alloys for thermal spray coatings with optimized corrosion and wear properties

An Overview of Thermally Sprayed Fe-Cr-Nb-B Metallic Glass Coatings: From the Alloy Development to the Coating’s Performance Against Corrosion and Wear

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