Study on Microstructure and Properties of WC Reinforced Fe-based Composite AITranslate
Abstract AITranslate
WC reinforced Fe-based composite was prepared by hot pressing sintering with two kinds of Febased pre-alloyed powders of EXD602 and EXDNi105and WC powder as the raw materials.The effects were investigated of different WC content and alloy matrix on microstructure and properties of the composite.The results show that the hardness,density and wear resistance of WC-EXD602 composite are much higher than those of WC-EXDNi105.With the increase of WC content,both hardness and density of WCEXD602 and WC-EXDNi105 composites increase firstly and then decrease,while wear loss decreases firstly and then increases.When the content of WC is 30%,peak hardnesses of WC-EXD602 and WC-EXDNi105 are HRA64.8and HRA48.6,respectively,and the porosity is the lowest.When the content of WC is 45%,wear loss of the two composites is the lowest.WC and alloy matrix alternately frictionize throughout wear process,and the main wear mechanism is abrasive wear.There is no obvious passivation phenomenon in the corrosion polarization curves of WC-EXD602 and WC-EXDNi105 samples.The descending order of the above composites according to their corrosion resistance is as follows:15WC-EXD602>15WC-EXDNi105>75WC-EXDNi105>75WC-EXD602.With WC content increasing,the corrosion resistance of the composites decreases in 3.5% NaCl solution.
KeyWords AITranslate
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Basic Information:
DOI：
Chinese Library Classification Number:TB331[一般工业技术—材料科学与工程]
Citation Information:
WC reinforced Fe-based composite was prepared by hot pressing sintering with two kinds of Febased pre-alloyed powders of EXD602 and EXDNi105and WC powder as the raw materials.The effects were investigated of different WC content and alloy matrix on microstructure and properties of the composite.The results show that the hardness,density and wear resistance of WC-EXD602 composite are much higher than those of WC-EXDNi105.With the increase of WC content,both hardness and density of WCEXD602 and WC-EXDNi105 composites increase firstly and then decrease,while wear loss decreases firstly and then increases.When the content of WC is 30%,peak hardnesses of WC-EXD602 and WC-EXDNi105 are HRA64.8and HRA48.6,respectively,and the porosity is the lowest.When the content of WC is 45%,wear loss of the two composites is the lowest.WC and alloy matrix alternately frictionize throughout wear process,and the main wear mechanism is abrasive wear.There is no obvious passivation phenomenon in the corrosion polarization curves of WC-EXD602 and WC-EXDNi105 samples.The descending order of the above composites according to their corrosion resistance is as follows:15WC-EXD602>15WC-EXDNi105>75WC-EXDNi105>75WC-EXD602.With WC content increasing,the corrosion resistance of the composites decreases in 3.5% NaCl solution.
quote
| GB/T 7714-2015 | [1] WANG Li-ming, CONG Shan-hai, HU Mei. Study on Microstructure and Properties of WC Reinforced Fe-based Composite[J]. Rare Metals and Cemented Carbides, 2015(5): 22-29. |
| MLA | [1] WANG Li-ming, et al., "Study on Microstructure and Properties of WC Reinforced Fe-based Composite." Rare Metals and Cemented Carbides, no. 5, 2015, pp. 22-29. |
| APA | [1] WANG Li-ming, CONG Shan-hai, & HU Mei. (2015). Study on Microstructure and Properties of WC Reinforced Fe-based Composite. Rare Metals and Cemented Carbides(5), 22-29. |
| IEEE | [1] WANG Li-ming, CONG Shan-hai, and HU Mei, "Study on Microstructure and Properties of WC Reinforced Fe-based Composite," Rare Metals and Cemented Carbides, no. 5, pp. 22-29, 2015. keywords: {WC reinforced Fe-based composite;WC;Fe-based pre-alloyed powder;hot pressing sintering;microstructure;property} |