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Aiming at preparing the high performance concrete with metakaolin (MK) replacing silica fume (SF), comparison of fluidity between MK concrete and SF concrete was investigated in this paper.
SF is the by-product of silicon-containing alloys manufacture.
Fig. 4 Comparison of fluidity of MK concrete and SF concrete under the condition of different GGBS replacement This section aimed to compare the fluidities between high performance concretes prepared with MK and SF in the case of different water/binder ratio.
Investigation on compounding and application of C80 – C100 high-performance concrete.
Journal of Building Materials, 2002, 5(1), 21-25 (In Chines)

As an alternative for Zn coating, Zn/Al 85/15 alloys coating show very good corrosion resistances and can protect substrate materials against harsh corrosive environments.
The aim of this study is comparison of anticorrosion performance of Zn and Zn/Al 85/15 coatings on ductile iron pipe surfaces as protective coatings against corrosion.
Zn/Al 85/15 alaşımlarının daha yüksek korozyon performansı gösterdiği açıklanmıştır.<}0{>Numerous studies [12-14] dealing with Zn and Zn/Al 85/15 coatings reported higher corrosion resistance performances for Zn/Al 85/15 alloys.<0} {0>M Zecho[15] ve arkadaşları, Zn ve Zn/Al 85/15 elektrik ark sprey kaplamaların korozyon performanslarını çeşitli atmosferik koşullarda 3 yıl süren alan testleri ile kıyaslamıştır.<}0{>M.
Cox: Journal of Thermal Spray Technology Vol. 7 (1998), p. 513 [7] F.
Nürnberger: Otto-Graf- Journal Vol. 10 (1999), p. 60 [16] L.G.

Metals and alloys that exhibit the unwanted phenomenon of corrosion can cause chaos in almost every industry, leading to significant losses in terms of money and safety when replacing damaged items [9, 17, 18] and even major operational issues [19].
Using corrosion inhibitors of inorganic or organic compounds is a method used to reduce the detrimental effects of corrosive environments [30].
These compounds are 6-chloroquinazolin-4(3H)-one (Q1A), 2,3-dihydro-3-phenethyl-2-thioxopyrido[2,3-d]pyrimidin-4(1H)-one (Q1B), and 6-chloro-2,3-dihydro-3-phenethyl-2-thioxoquinazolin1(1H)-one (Q1C).
The compounds consisted of 4-(imidazole-1-il)-phenol (PHEN), [4-(1H-imidazole-1-yl)-phenyl]methanol (METH), 2-(1H-imidazol-1-yl)-1-phenylethan-1-one (ETHAN), and 4-(1H-imidazole-1-yl)benzaldehyde.
Finding ecologically benign organic compounds likely to be used as corrosion inhibitors in engineering practices is currently the main problem in corrosion science [18, 43].

The aim of this study is to investigate the effect of ultrasound vibrations on the structure and properties of the heat-affected zone of joints obtained by explosive welding.
Ushanova, Analysis of the misoriented structures in the model copper-copper compound formed by explosion welding, Technical Physics, 59 (2014) 1819-1832
Dai, Effects of high-intensity ultrasonic-wave emission on the weldability of aluminum alloy 7075-T6, Materials Letters. 57 (2003) 2447-2454
Kuzmin, Energy balance during explosive welding, Journal of Materials Processing Technology. 222 (2015) 356-364
Evolution of ideas, Journal of Materials Processing Technology. 212 (2012) 150-156

As a result of studying the increase in scale during firing in depending on the steel grade, it was found that if alloying additives (Ni, Cr) are present in the steel, its mass increase at 800°С for 10 min 0.2 mg / cm2, for ordinary mild unalloyed steel 4 ... 6 mg / cm2.
The chemical composition and physical properties of iron oxide compounds Iron compound Chemical formula Molecular mass Density, g / cm3 Melting point, 0С Color, structure Surface location and layer thickness Scale Wustit FeO 71.84 5.28 1370 The black; loose, porous fine crystalline Adheres to metal, 50% of the thickness Magnetite Fe3O4 231.52 5.20 1538 The black; glassy, hard, brittle Intermediate layer, 40% of the total thickness Hematite Fe2O3 159.68 5.12 1565 Gray black; velvety; dense, crystalline The outer layer, 10% of the total thickness Magnetite and hematite are only capable of dissolving in the enamel melt, changing its properties, mainly during high-temperature firing.
Therefore, the study aimed to determine the optimal temperature and time intervals for firing synthesized enamel coatings on metal samples of appropriate thickness.
Synthesis of Low-Melting Pipe Enamel Coatings and Their Chemical Durability // American Journal of Materials Science. 2016.
Protection of steel pipelines with glass-enamel coatings based on silica-containing raw materials of the far east of Russia // International Journal of Mechanical Engineering and Technology (IJMET). 2018.

It indicates that the interaction between the two is compounded.
Hebei Journal of Industrial Science and Technology, , 2017,34(03):216-221
Journal of Materials Processing Technology, 2015, 219(8):257-270
Study on High Temperature Manganese Phosphating Treatment Technology of 25Cr2Ni4W and 30CrNi3 Alloy Steel[D].
Journal of Reinforced Plastics and Composites, 2011, 30(20): 1729-1737.

Fig. 9 shows the normalized master sintering curves of various metals and alloys.
Fig. 9: Normalized master sintering curves for various metals and alloys [72]. 11.
Certainly, the formation of intermetallic compounds at the interface of two phases cannot be grouped under classical liquid phase sintering [77].
According to him “Restoration of bonds broken at the surfaces of grains in contact takes place during sintering of metals and compounds.
Upadhyaya, Manganese in Powder Metallurgy Alloys, Manganese Centre, Paris, 1986

This research aims to investigate using spindle power consumption signals obtained directly from an industrial drilling system to monitor tool wear evolution.
Additionally, the complexity of drilling in hybrid stacks further compounds the challenges of this process.
Replaceable drill bit with compound step and sawtooth structures for damages and drilling-cost reduction of CFRP composite.
International Journal of Advanced Manufacturing Technology 2015;76. https://doi.org/10.1007/s00170-014-6199-3
In-process monitoring and empirical modeling of the tool wear in turning of aluminum alloys using thermoelectric signals.

AISI H11 tool steel is a complex tool steel alloy used to manufacture hot forging dies.
The main aim was the development of a novel WP-LMD process, and consequently a new H11 tool steel with improved toughness and hardness.
Nonetheless, several other materials can also be used, which are difficult to obtain in wire form such as tantalum, titanium diboride compound, and tungsten.
[12] Clark D et al. 2008 Journal of Materials Processing Technology 203 p 439-448
[16] Fallah V et al. 2010 Journal of Materials Processing Technology 210 p 2081-2087

Introduction Titanium (Ti) and its alloys are widely used to manufacture of dental implants, maxillofacial and orthopaedic prostheses.
Using the same approach of controlled anodization in dilute fluoride electrolytes, nanotubes of intermetallic titanium compounds such as Ti-Al [123], binary alloys such as TiNb [119], TiZr [126] or on complex biomedical alloys such as Ti-6Al-7Nb [121] and Ti-29Nb-13Ta4.6Zr [124] were successfully fabricated.
Fraker: Titanium alloys as implant materials, ASTM Special Technical Publication 1272, (1996) p. 3-6
Williams: Conjoint corrosion and wear in titanium alloys, Biomaterials, Vol. 20(8) (1999) p.765-772
Tsuchiya et al.: Self-organized porous and tubular oxide layers on TiAl alloys.