Compression properties and abrasive wear behavior of high volume fraction TiCx–TiB2/Cu composites fabricated by combustion synthesis and hot press consolidation

2012 ◽  
Vol 40 ◽  
pp. 157-162 ◽  
Author(s):  
Jianbang Lu ◽  
Shili Shu ◽  
Feng Qiu ◽  
Yawei Wang ◽  
Qichuan Jiang
Keyword(s):  
Abrasive Wear ◽  
Combustion Synthesis ◽  
Volume Fraction ◽  
Wear Behavior ◽  
High Volume ◽  
High Volume Fraction ◽  
Hot Press ◽  
Compression Properties ◽  
Abrasive Wear Behavior

Vanadium Additions to a High-Cr White Iron and its Effects on the Abrasive Wear Behavior.

MRS Advances ◽  
2020 ◽  
Vol 5 (59-60) ◽  
pp. 3077-3089
Author(s):  
Alexeis Sánchez ◽  
Arnoldo Bedolla-Jacuinde ◽  
Francisco V. Guerra ◽  
I. Mejía
Keyword(s):  
Heat Treatment ◽  
Abrasive Wear ◽  
Volume Fraction ◽  
Wear Behavior ◽  
Wear Behaviour ◽  
White Iron ◽  
Heat Treated ◽  
Bulk Hardness ◽  
Abrasive Wear Behavior ◽  
Vanadium Carbides

AbstractFrom the present study, vanadium additions up to 6.4% were added to a 14%Cr-3%C white iron, and the effect on the microstructure, hardness and abrasive wear were analysed. The experimental irons were melted in an open induction furnace and cast into sand moulds to obtain bars of 18, 25, and 37 mm thickness. The alloys were characterized by optical and electronic microscopy, and X-ray diffraction. Bulk hardness was measured in the as-cast conditions and after a destabilization heat treatment at 900°C for 45 min. Abrasive wear resistance tests were undertaken for the different irons according to the ASTM G65 standard in both as-cast and heat-treated conditions under a load of 60 N for 1500 m. The results show that, vanadium additions caused a decrease in the carbon content in the alloy and that some carbon is also consumed by forming primary vanadium carbides; thus, decreasing the eutectic M7C3 carbide volume fraction (CVF) from 30% for the base iron to 20% for the iron with 6.4%V;but overall CVF content (M7C3 + VC) is constant at 30%. Wear behaviour was better for the heat-treated alloys and mainly for the 6.4%V iron. Such a behaviour is discussed in terms of the CVF, the amount of vanadium carbides, the amount of martensite/austenite in matrix and the amount of secondary carbides precipitated during the destabilization heat treatment.

scholarly journals Niobium Additions to a 15%Cr–3%C White Iron and Its Effects on the Microstructure and on Abrasive Wear Behavior

Metals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1321 ◽  
Author(s):  
Arnoldo Bedolla-Jacuinde ◽  
Francisco Guerra ◽  
Ignacio Mejia ◽  
Uzzi Vera
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Volume Fraction ◽  
Wear Behavior ◽  
Solidification Process ◽  
White Iron ◽  
Bulk Hardness ◽  
Abrasive Wear Behavior ◽  
Cast Alloys

From the present study, niobium additions of 1.79% and 3.98% were added to a 15% Cr–3% C white iron, and their effects on the microstructure, hardness and abrasive wear were analyzed. The experimental irons were melted in an open induction furnace and cast into sand molds to obtain bars of 45 mm diameter. The alloys were characterized by optical and electron microscopy, and X-ray diffraction. Bulk hardness was measured in the as-cast conditions and after a destabilization heat treatment at 900 °C for 30 min. Abrasive wear resistance tests were undertaken for the different irons according to the ASTM G65 standard in both as-cast and heat-treated conditions under three loads (58, 75 and 93 N). The results show that niobium additions caused a decrease in the carbon content in the alloy and that some carbon is also consumed by forming niobium carbides at the beginning of the solidification process; thus decreasing the eutectic M7C3 carbide volume fraction (CVF) from 30% for the base iron to 24% for the iron with 3.98% Nb. However, the overall carbide content was constant at 30%; bulk hardness changed from 48 to 55 hardness Rockwell C (HRC) and the wear resistance was found to have an interesting behavior. At the lowest load, wear resistance for the base iron was 50% lower than that for the 3.98% Nb iron, which is attributed to the presence of hard NbC. However, at the highest load, the wear behavior was quite similar for all the irons, and it was attributed to a severe carbide cracking phenomenon, particularly in the as-cast alloys. After the destabilization heat treatment, the wear resistance was higher for the 3.98% Nb iron at any load; however, at the highest load, not much difference in wear resistance was observed. Such a behavior is discussed in terms of the carbide volume fraction (CVF), the amount of niobium carbides, the amount of martensite/austenite in matrix and the amount of secondary carbides precipitated during the destabilization heat treatment.

Effects of particle size and surface modification of SiC on the wear behavior of high volume fraction Al/SiCp composites

2020 ◽  
Vol 831 ◽  
pp. 154647 ◽  
Author(s):  
Taegyu Lee ◽  
Junho Lee ◽  
Donghyun Lee ◽  
Ilguk Jo ◽  
Sang Kwan Lee ◽  
...  
Keyword(s):  
Particle Size ◽  
Surface Modification ◽  
Volume Fraction ◽  
Wear Behavior ◽  
High Volume ◽  
High Volume Fraction

Effects of alloy elements (Mg, Zn, Sn) on the microstructures and compression properties of high-volume-fraction TiCx/Al composites

2010 ◽  
Vol 63 (12) ◽  
pp. 1209-1211 ◽  
Author(s):  
Shili Shu ◽  
Jianbang Lu ◽  
Feng Qiu ◽  
Qianqian Xuan ◽  
Qichuan Jiang
Keyword(s):  
Volume Fraction ◽  
High Volume ◽  
High Volume Fraction ◽  
Compression Properties

Effects of TiB2 content and alloy elements (Mg, Mo, V) on the compression properties of high-volume-fraction TiB2/Al composites

2014 ◽  
Vol 607 ◽  
pp. 28-32 ◽  
Author(s):  
Long-Jiang Zhang ◽  
Qian-Qian Xuan ◽  
Jin-Guo Wang ◽  
Feng Qiu ◽  
Qi-Chuan Jiang
Keyword(s):  
Volume Fraction ◽  
High Volume ◽  
High Volume Fraction ◽  
Compression Properties
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