Synthesis and elastic properties of amorphous steels with high Fe content

Zhao, Yucheng; Luo, Cuicui; Xi, Xuekui; Zhao, Dongdong; Pan, M. X.; Wang, W.H.

doi:10.1016/j.intermet.2006.01.047

Cited by 17 publications

(14 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bulk amorphous steels (BASs) offer important advantages over their crystalline counterparts such as much lower material cost, higher strength, better magnetic properties, better corrosion resistance and higher thermal stability as well as better glassforming ability (GFA) [3,4]. Structural amorphous steels (SASs) having thickness up to 12-16 mm have been produced with glass transition temperature T g above 900 K by Cu mold casting [5][6][7][8]. However, most of these steels have negligible ductility and they are brittle [9].…”

Section: Introductionmentioning

confidence: 99%

“…Efforts have been devoted to improve the GFA of Fe-based alloys in order to enhance their ability to form bulk glassy steels under conventional industrial conditions, using, for example, commercial-grade raw materials, low vacuum, conventional casting techniques, etc. Recently, a great progress has been made in fabricating bulk amorphous steels [5][6][7][8][9][10] stronger as well as have superior corrosion resistance compared to the ordinary steels.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and characterization of bulk amorphous steels

Iqbal

Akhter

Zhang

et al. 2008

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of bulk amorphous steels

Iqbal

Akhter

Zhang

et al. 2008

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

“…Compared with crystalline materials, the liquid-like atomic structure, with no grain boundaries, dislocations, and phase segregation confers bulk metallic glasses superior mechanical properties involving high fracture strength and large elastic deformation [1]. Fe-based metal glasses were found to exhibit a higher strength, hardness, and corrosion resistance than other amorphous and crystalline alloy materials [2]. Amorphous alloys are widely applied in micro-and nano-electromechanical devices due to their outstanding physical and electrochemical properties [3].…”

Section: Introductionmentioning

confidence: 99%

Impact of Pretreatment of Metal Glass Fe70Cr15B15 on Anodization in 1-butyl-3-methylimidazolium Tetrafluoroborate Ionic Liquid

Lebedeva

Snytko

Kuznetsova

et al. 2020

Metals

View full text Add to dashboard Cite

The impact of preliminary treatment (mechanical abrasion; chemical etching and anodization in ionic liquid) on the surface structure and corrosion behavior of Fe70Cr15B15 metal glass was studied. The detachment of the anodic oxide film from untreated Fe-amorphous alloy under anodization in ionic liquid was observed for the first time. The formation of hexagonal nanostructures (cells) on the surface of the Fe70Cr15B15 alloy after mechanical abrasion and following anodization in 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]) ionic liquid was also detected for the first time. Electrochemical corrosion of the initial and pretreated amorphous alloy was tested in a Na2SO4 aqueous solution. The resistance to corrosion was found to be enhanced slightly after mechanical abrasion. The sample with hexagonal nanostructures obtained after anodization of the mechanically abraded sample demonstrated a more significant anodic shift in the corrosion potential (Ecorr = + 379 mV) compared with that for the initial alloy (Ecorr = −125 mV).

show abstract

“…However, in order to be employed as industrial materials, SASs still need to have larger toughness and lower fabrication costs that is currently high because of the use of pure elements and high vacuum conditions. Some attempts have been made to form bulk amorphous steels employing commercial-grade raw materials [9,10], conventional casting techniques and low vacuum conditions [11][12][13]. In this paper we have studied the effect of some processing conditions (air atmosphere, casting of a plate and use of commercial raw materials) on the glass formation and properties of two Fe-based BMGs.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of Fe-based bulk metallic glasses in plate form

Lavorato

Fiore

Castellero

et al. 2012

Physica B: Condensed Matter

View full text Add to dashboard Cite

Amorphous alloys with composition (at%) Fe 48 Cr 15 Mo 14 C 15 B 6 Gd 2 (alloy A) and Fe 48 Cr 15 Mo 14 C 15 B 6 Y 2 (alloy B) were prepared either using pure elements (A and B1) and a commercial AISI430 steel as a base material (B2). When prepared from pure elements both alloys (A and B1) could be cast in plate form with a fixed thickness of 2 mm and variable lengths between 10 and 20 mm by means of copper-mold injection in air atmosphere. In the case of alloy B2, prepared using commercial grade raw materials, rods of 2 mm diameter were obtained.X-ray diffraction and scanning electron microscopy observations confirmed that an amorphous structure was obtained in all the as-cast samples. A minor fraction of crystalline phases (oxides and carbides) was detected on the as-cast surface. Differential scanning calorimetry measurements showed a glass transition temperature at 856 K for alloy A and 841 K for alloy B1, and an onset crystallization temperature of 887 K for alloy A and 885 K for alloy B1. In the case of alloy B2 a slightly different crystallization sequence was observed.Values of hardness ( 13 GPa) and the Young modulus ( 180 GPa) were measured by nanoinden-tation for both the alloys. The effects of adverse casting conditions (such as air atmosphere, non-conventional injection copper mold casting and partial replacement of pure elements with commercial grade raw materials) on the glass formation and properties of the alloy are discussed.

show abstract

Synthesis and elastic properties of amorphous steels with high Fe content

Cited by 17 publications

References 25 publications

Synthesis and characterization of bulk amorphous steels

Synthesis and characterization of bulk amorphous steels

Impact of Pretreatment of Metal Glass Fe70Cr15B15 on Anodization in 1-butyl-3-methylimidazolium Tetrafluoroborate Ionic Liquid

Preparation and characterization of Fe-based bulk metallic glasses in plate form

Contact Info

Product

Resources

About