Nanolayered metallic glass-crystalline composites with high strength and wear resistance

Nanolayered metallic glass-crystalline composites are promising materials that combine the high strength of metallic glasses with the superior ductility of crystalline metals. Previous work has focused on metallic glass-FCC crystalline nanolayers, and showed that the strength follows the Hall-Petch behavior of increasing strength with decreasing layer thickness. In our work, we investigated metallic glass-HCP crystalline nanolayers. Interestingly, the strength of these layers does not show any size effect; strength is virtually constant for different layer thicknesses. The results can be explained by the high strength of HCP layers, exceeding that of the metallic glass. The unique size-independent strength of metallic glass-HCP nanolayers provide an effective way of understanding the sliding wear behavior of nanolayered composites. In this context, we investigated CuZr/Zr nanolayers, and observed decreasing wear resistance with decreasing layer thickness. This somewhat unusual trend can be explained by the low shear strength of the crystalline-amorphous interface.


Nanoscratch Behavior of Metallic Glass/Crystalline Nanolayered Composites
Abboud, Mohammad; Motallebzadeh, Amir; Verma, Nisha; Özerinç, Sezer (2019-02-01)
Nanolayered metallic glass/crystalline composites provide an effective structure for improving the ductility of metallic glasses while maintaining their outstanding strength. The combination of high strength and ductility make these nanocomposites promising materials as wear-resistant coatings. In this work, we experimentally investigated the mechanical properties and nanoscratch behavior of CuZr/Zr metallic glass/crystalline nanolayers. The scratch resistance was highest for the monolithic CuZr, and dimini...
Alloy design for the development and production of titanium based bulk metallic glasses
Demir, Iraz Begüm; Akdeniz, M. Vedat.; Department of Metallurgical and Materials Engineering (2019)
The bulk metallic glasses (BMGs) are quite new type of metallic alloys exhibiting many superior features like high yield strength, improved elastic behavior, high corrosion resistance and superior abrasion resistance by virtue of its irregular atomic structures. Due to the importance of today’s reduced energy consumption, special attention is given to the light element-based bulk metallic glasses. Among these, Ti-based amorphous alloys have promising mechanical properties for use in engineering applications...
Titanium-magnesium based composites: Mechanical properties and in-vitro corrosion response in Ringer's solution
ESEN, ZİYA; Dikici, Burak; Duygulu, Ozgur; Dericioğlu, Arcan Fehmi (Elsevier BV, 2013-06-20)
Ti-Mg composite rods exhibiting both bioinert and biodegradable characteristics have been manufactured by hot rotary swaging from elemental powders of titanium and magnesium. As a result of processing, spherical magnesium powders elongated in the direction of deformation and the dendritic structure in starting magnesium powders transformed into highly equiaxed grains. Magnesium particles in the outer layer of the composites were decorated by thin layer of MgO while the interior parts were free from oxides. ...
Designing of Ti-Mg composites for various applications
Bütev Öcal, Ezgi; Dericioğlu, Arcan F.; Department of Metallurgical and Materials Engineering (2019)
In this study, galvanic corrosion of Ti-Mg based composites has been examined by combining different Mg-alloys with Ti6Al4V alloy and by addition of Na-rich layer between two dissimilar metals. After determining the wetting behavior of liquid unalloyed Mg, AZ91, and WE43 alloys on solid Ti6Al4V alloy, three different composites were manufactured via infiltration of liquid Mg/Mg-alloys into porous Ti6Al4V alloy skeletons. The same procedure was also repeated after coating the porous surfaces of Ti6Al4V alloy...
Experimental investigation of the effect of CNT addition on the strength of CFRP curved composite beams
Arca, M.A.; Uyar, I.; Çöker, Demirkan (2015-01-01)
Carbon nanotubes (CNT) have been attracting attention as a toughening material in composite matrix due to their excellent mechanical properties. However, superior properties of CNTs have not yet been realized in the strengthening of composites against fracture. This study focuses on investigating the effect of CNT variation in the epoxy resin on the strength of curved composite beams. Specimens are [0/90] fabric carbon/epoxy composite laminates manufactured by hand layup technique 3 % wt CNT fractions in th...
Citation Formats
S. Özerinç, “Nanolayered metallic glass-crystalline composites with high strength and wear resistance,” presented at the TMS 2020 Annual Meeting & Exhibition, (23 - 27 Şubat 2020), California, Amerika Birleşik Devletleri, 2020, Accessed: 00, 2021. [Online]. Available: