Improvement of the Wear Resistance of A6061 Plate by Resistance Seam Welding with High Carbon Iron Alloy Powders

2014 ◽  
Vol 941-944 ◽  
pp. 2093-2097
Author(s):  
Wen Qin Wang ◽  
Tomiko Yamaguchi ◽  
Naoyuki Ohno ◽  
Kazumasa Nishio
Keyword(s):  
Wear Resistance ◽  
Intermetallic Compound ◽  
Welding Speed ◽  
Alloy Powder ◽  
Iron Alloy ◽  
High Carbon ◽  
Seam Welding ◽  
Cladding Layer ◽  
Carbon Iron ◽  
Cladding Layers

To improve the wear resistance of A6061 plate, Fe alloy cladding layers consisting of FeAl3 intermetallic compound were synthesized by resistance seam welding with high carbon iron alloy powder (SHA). The effect of welding speed on the macrostructures, phase compositions, hardness, and wear resistance of the cladding layers were investigated. The results showed the hardness of the cladding layers were significantly improved to 455, 469, 479 and 615 HV in response to the welding speed of 0.1, 0.5, 1.0 and 1.5 m/min as compared with 60 HV of the A6061 substrate. The wear resistance of the cladding layer was also enhanced with decreasing the welding speed.

A13-Type phase revealed in rapidly solidified high-carbon iron alloy

1991 ◽  
Vol 22 (1) ◽  
pp. 251-253 ◽  
Author(s):  
H. Era ◽  
K. Kishitake ◽  
F. Otsubo ◽  
E. Tanaka
Keyword(s):  
Iron Alloy ◽  
High Carbon ◽  
Type Phase ◽  
Carbon Iron ◽  
Rapidly Solidified

Effect of CeO2 on TiC Morphology in Ni-Based Composite Coating

2018 ◽  
Vol 37 (3) ◽  
pp. 209-217 ◽  
Author(s):  
Yangchuan Cai ◽  
Zhen Luo ◽  
Yao Chen
Keyword(s):  
Wear Resistance ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Grain Boundaries ◽  
Composite Coating ◽  
Equiaxed Crystal ◽  
Columnar Crystal ◽  
Cladding Layer ◽  
Different Content ◽  
Cladding Layers

AbstractThe TiC/Ni composite coating with different content of CeO2 was fabricated on the Cr12MoV steel by laser cladding. The microstructure of cladding layers with the different content of CeO2 from the bottom to the surface is columnar crystal, cellular crystal, and equiaxed crystal. When the content of CeO2 is 0 %, the cladding layer has a coarse and nonuniform microstructure and TiC particles gathering in the cladding layer, and then the wear resistance was reduced. Appropriate rare-earth elements refined and homogenised the microstructure and enhanced the content of carbides, precipitated TiC particles and original TiC particles were spheroidised and refined, the wear resistance of the cladding layer was improved significantly. Excessive rare-earth elements polluted the grain boundaries and made the excessive burning loss of TiC particles that reduced the wear resistance of the cladding layer.

scholarly journals Microstructure and Properties of Cladding Layers Prepared by Argon-Shielded Arc Cladding of CuZn40-WC Powders on Pure Aluminum Substrate

Coatings ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 382
Author(s):  
Xinge Zhang ◽  
Qing Sang ◽  
Zhenan Ren ◽  
Guofa Li
Keyword(s):  
Wear Resistance ◽  
Pure Aluminum ◽  
Weight Ratio ◽  
High Strength ◽  
Aluminum Substrate ◽  
High Wear Resistance ◽  
Microstructure And Properties ◽  
Cladding Layer ◽  
Wear Damage ◽  
Cladding Layers

Aluminum and aluminum alloys have the advantage of a high strength-to-weight ratio, but their low hardness and poor wear resistance often cause wear damage. In the present study, the cladding layer was prepared using argon-shielded arc cladding of CuZn40-WC powders which were pre-coated on a pure aluminum substrate. The effects of WC proportion on the morphology, microstructure, and properties of cladding layers were investigated in detail. The results indicated that the optimal WC proportion in CuZn40-WC powders was 60 wt.%. With the increase of WC proportion, although the morphology of the cladding layer became slightly worse, the surface quality of the cladding layer was acceptable for industrial application until the WC proportion was 80 wt.%. Meanwhile, the top width and maximum depth of the cladding layer decreased. The maximum microhardness and optimal wear resistance of the cladding layer were 4.5 and 2.5 times that of the aluminum substrate, respectively. The increased microhardness and wear resistance were mainly attributed to the formation of Al4W in the cladding layer. The wear scar of the high wear resistance specimen was smoother and some bulk Al4W compounds were clearly observed on the wear surface.

scholarly journals The Role of Distribution Forms of Fe–Cr–C Cladding Layer in the Impact Abrasive Wear Performance of Hadfield Steel

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1818
Author(s):  
Zhang Pan ◽  
Xuanpu Dong ◽  
Huatang Cao ◽  
Qiwen Huang
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Abrasive Wear Resistance ◽  
Hadfield Steel ◽  
Wear Performance ◽  
Cladding Layer ◽  
Glass Sand ◽  
The Impact ◽  
Cladding Layers

To investigate the role of different distribution forms of Fe–Cr–C cladding layer in the impact abrasive wear performance of Hadfield steel, the over-lapped Fe–Cr–C cladding layer and dot-shaped Fe–Cr–C cladding layer were deposited, respectively, by plasma transferred arc (PTA) cladding on Hadfield steel. The microstructure, microhardness and impact abrasive wear performance of the two cladding layers under the impact of glass sand, granite and quartz sand were investigated. The results showed that both microstructures of the cladding layers were hypoeutectic Fe–Cr–C microstructures. The average microhardness of the over-lapped cladding layer and dot-shaped cladding layer was around 560 HV0.2 and 750 HV0.2, respectively. The over-lapped Fe–Cr–C cladding layer could only improve the impact abrasive wear resistance of the Hadfield steel under the wear condition of the glass sand. Meanwhile, the dot-shaped Fe–Cr–C cladding layer could improve the impact abrasive wear resistance of the Hadfield steel under all the three kinds of the abrasives because of the overall strengthening effect of its convex shape and the hypoeutectic FeCrC microstructure.

Microstructure and Wear Characteristics of Fe-Based Hard-Facing Alloy Claddings Formed by Gas Tungsten Arc Welding

2012 ◽  
Vol 706-709 ◽  
pp. 3028-3033 ◽  
Author(s):  
C.M. Lin ◽  
W. Wu
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Arc Welding ◽  
Martensite Phase ◽  
Gas Tungsten Arc Welding ◽  
Abrasive Wear Resistance ◽  
Cladding Layer ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Cladding Layers

The current investigation discusses the effect of Mn and Si contents on the microstructure and abrasive wear characteristic in Fe-based hard-facing alloy. A series of Fe-based hard-facing alloys are successfully fabricated onto the S45C steel by gas tungsten arc welding (GTAW). Results reveal that microstructure contains great amounts of martensite phases and moderate amounts of austenite phases. Si element added into Fe-based hard-facing alloy can not obviously affect the properties of the claddings, such as martensite phase, hardness, and abrasive wear resistance. Nevertheless, Mn element added into Fe-based hard-facing alloy can efficiently affect the martensite phase, hardness, and abrasive wear resistance of the claddings. The martensite contents decreases with the increasing of Mn contents in the cladding layers. The hardness increases as the Mn contents decreases, because the martensite contents increases. The abrasive wear resistance is not only related to the hardness of the cladding layer but the martensite contents of the cladding layer. The abrasive wear resistance is an inverse proportion to Mn contents of the cladding layers. Especially, the cladding layers containing 1.4Si-0.3Mn has the highest hardness of HRC 60.1 and the lowest wear loss of 0.37g.

Nonequilibrium austenite/ε-phase eutectic revealed in rapidly solidified high-carbon iron alloy

1991 ◽  
Vol 22 (3) ◽  
pp. 791-792 ◽  
Author(s):  
K. Kishitake ◽  
H. Era ◽  
F. Otsubo ◽  
E. Tanaka
Keyword(s):  
Iron Alloy ◽  
High Carbon ◽  
Ε Phase ◽  
Carbon Iron ◽  
Rapidly Solidified

scholarly journals Microstructure and Properties of WC/diamond/Co-based Gradient Composite Coatings on High-speed Steel Fabricated by Laser Cladding

2021 ◽  
Author(s):  
Donggang Liu ◽  
Guoxing Liang ◽  
Xinhui Hao ◽  
Yonggui Huang ◽  
Guang Li ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Laser Cladding ◽  
Polarization Resistance ◽  
Alloy Powder ◽  
High Speed ◽  
Composite Coatings ◽  
High Speed Steel ◽  
Wear Loss ◽  
Cladding Layer

Abstract Improving the wear resistance and corrosion resistance of high-speed steel (HSS), WC/diamond/Co-based gradient composite coatings were produced on HSS substrates by laser cladding with different compositions powder mixture (Co-Cr alloy powder, 80Co-Cr alloy powder+20WC, 53Co-Cr alloy powder+40WC+7diamond, wt.%). The macromorphology, microstructures and phase composition were characterized by optical microscope (OM), scanning electron microscopy (SEM) equipped with energy dispersion spectrometry (EDS), and X-ray diffraction (XRD) techniques. The microhardness, wear resistance and corrosion resistance of the gradient coatings were also investigated respectively. The results indicate that the prepared WC/diamond/Co-based gradient composite cladding layer has a fine morphology on the cross sections and a gradient transition of the grain size has been achieved. The microhardness result presents gradient distribution along the depth of the coating. The microhardness is strengthened due to the dispersions of M7C3 (M is Fe, Cr), Co3C, CrCo, Cr3C2, Fe3C in the composite coating, and the highest microhardness of 1342 HV0.2 can be detected in the cladding layer. The friction coefficient values of the coatings range from 0.27 to 0.40, which is much lower than that of the substrate (0.50-0.60). Furthermore, the wear loss of coatings decreases by more than 3 times comparing with that of the substrate (3.5 mg). The polarization resistance results show that the cladding layer has excellent corrosion resistance with polarization resistance can reach the value of 236488.1 Ω·cm2. The gradient transition of the mechanical properties and chemical metallurgical combination between particle (WC, diamond) and adhesive phase can be obtained in laser cladding, which improves the wear resistance and corrosion resistance of the HSS surface.

scholarly journals Wear Resistance of Deposited Iron Alloy with High-Carbon and High-Vanadium

1978 ◽  
Vol 64 (12) ◽  
pp. 1764-1770
Author(s):  
Joo ISHIHARA ◽  
Masaichi NAGAI
Keyword(s):  
Wear Resistance ◽  
Iron Alloy ◽  
High Carbon

Optically Detected Magnetic Resonance and Double Beam Photoluminescence of CdS/HgS/CdS Nanoparticles

1998 ◽  
Vol 536 ◽  
Author(s):  
H. Porteanu ◽  
A. Glozman ◽  
E. Lifshitz ◽  
A. Eychmüller ◽  
H. Weller
Keyword(s):  
Optical Properties ◽  
Magnetic Resonance ◽  
Cds Nanoparticles ◽  
Electron Hole ◽  
Cladding Layer ◽  
Double Beam ◽  
Optically Detected Magnetic Resonance ◽  
Optically Detected ◽  
Cladding Layers ◽  
Hole Recombination

AbstractCdS/HgS/CdS nanoparticles consist of a CdS core, epitaxially covered by one or two monolayers of HgS and additional cladding layers of CdS. The present paper describes our efforts to identify the influence of CdS/HgS/CdS interfaces on the localization of the photogenerated carriers deduced from the magneto-optical properties of the materials. These were investigated by the utilization of optically detected magnetic resonance (ODMR) and double-beam photoluminescence spectroscopy. A photoluminescence (PL) spectrum of the studied material, consists of a dominant exciton located at the HgS layer, and additional non-excitonic band, presumably corresponding to the recombination of trapped carriers at the interface. The latter band can be attenuated using an additional red excitation. The ODMR measurements show the existence of two kinds of electron-hole recombination. These electron-hole pairs maybe trapped either at a twin packing of a CdS/HgS interface, or at an edge dislocation of an epitaxial HgS or a CdS cladding layer.

Sign in / Sign up

Export Citation Format

Share Document