Characterisation and oxidation behaviour of plasma surface alloyed on γ-TiAl alloy

Published on Mar 4, 2021in Materials at High Temperatures1.389
· DOI :10.1080/09603409.2020.1859309
Xiaohu Chen (ZJU: Zhejiang University), Feng Ding5
Estimated H-index: 5
(NUAA: Nanjing University of Aeronautics and Astronautics)
+ 6 AuthorsGuoping Ling (ZJU: Zhejiang University)
Source
Abstract
The double glow plasma surface alloying process (DGP) is an emerging alternative technology for fabricating thermal barrier coating. In spite of its merits such as gradient metallurgical bond and t...
References47
Newest
#1Ju Rong (Kunming University of Science and Technology)H-Index: 6
#2Xiao Wang (Kunming University of Science and Technology)H-Index: 5
Last. Zhaolin Zhan (Kunming University of Science and Technology)H-Index: 7
view all 7 authors...
Abstract FeAl coatings with yttrium (Y) doping were prepared at 600 °C on pure iron. The anti-flaking properties of Al 2 O 3 -oxide films at 1000 °C oxidation was improved significantly by Y doping in FeAl coatings. The spallation was 0.47 mg/cm 2 for 200 h of oxidation and only ∼1/6 of that without Y. The first principle calculation results demonstrate that the interfacial bond strength were enhanced with Y doping, that is because Y substituted primarily in the Al 1 and Al 2 position at the Al ...
4 CitationsSource
#1Guojian Cao (Harbin University of Science and Technology)H-Index: 1
#2Wang Yueyue (Harbin University of Science and Technology)H-Index: 1
Last. Guangze Tang (HIT: Harbin Institute of Technology)H-Index: 1
view all 3 authors...
NiCrAlY coatings were deposited on superalloy GH4169 by electrospark deposition technique. Influences of the depositing parameters (100 V/40 μF, 100 V/80 μF, 100 V/120 μF, 150 V/40 μF, 150 V/80 μF, 150 V/120 μF) on the microstructure and the properties of the coatings were experimentally investigated. Results show that the depositing parameters affect defect density and consequent properties of coatings. The deposition voltage has greater influences on the deposition velocity and on the properti...
3 CitationsSource
#1Xiaohu Chen (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 9
#2Pingze Zhang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 18
Last. Shijian Ma (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 1
view all 7 authors...
Abstract Hard ceramic and ductile metal materials combined in multilayered structures provide superior wear and oxidation resistance to the single layer, which has been applied extensively to components subjected to high-temperature oxidation and wear. In this paper, the oxidation and wear properties of Cr/CrC multilayer coating obtained on γ-TiAl alloy by an emerging technology, that is double glow plasma surface alloying technology, were reported. Sliding wear and oxidation tests were performe...
27 CitationsSource
#1Xiangfei Wei (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 7
#2Pingze Zhang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 18
Last. Tomasz Liskiewicz (University of Leeds)H-Index: 17
view all 6 authors...
Double-glow plasma (DGP) coatings are recommended for metallic components to mitigate the damage induced by complex working conditions in previous studies. In this paper, Nb-rich (Cr–Nb₄) and Cr-rich (Cr₄–Nb) -alloyed layers were formed onto the Ti–Al substrate via a DGP process to enhance its wear resistance. Scratch and Nano-indentation tests were used to evaluate the mechanical properties of the coatings. The tribological behaviour of the coatings were investigated using a pin-on-disc tribome...
3 CitationsSource
#1Ying Chen (University of Manchester)H-Index: 17
#2Xiaofeng Zhao (SJTU: Shanghai Jiao Tong University)H-Index: 24
Last. Ping Xiao (University of Manchester)H-Index: 42
view all 8 authors...
Abstract We present a series of experimental observations on surface rumpling of an initially flat NiCoCrAlY coating deposited on a Ni-based superalloy during cyclic oxidation at 1150 °C. The extent of rumpling of the coating depends on the thermal history, coating thickness and exposed atmosphere. While the coating surface progressively roughens with cyclic oxidation, the bulk NiCoCrAlY alloys with the same nominal composition are much less susceptible to rumpling under the same oxidation condi...
47 CitationsSource
#1Zhong XuH-Index: 2
#2Frank F. XiongH-Index: 1
18 CitationsSource
#1Zhong-Kai Qiu (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 3
#2Pingze Zhang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 18
Last. Peng Zhou (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 3
view all 5 authors...
Abstract A dense CrCoNiAlTiY coating was deposited onto the γ-TiAl alloy by double-glow plasma surface alloying technique to improve its wear resistance. Microstructure analysis showed that the coating consisted of AlCr 2 , σ-NiCoCr, γ-TiAl and γ׳-Ni 3 Al phase, and was well diffusion bonded to the substrate. In terms of the H / E and H 3 / E 2 ratios, the CrCoNiAlTiY coating was nearly 3.5 times better than the γ-TiAl substrate. Dry wear test results indicated that the specific wear rate of γ-T...
23 CitationsSource
#1Dongbo Wei (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 15
#2Pingze Zhang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 18
Last. Xiaohu Chen (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 9
view all 6 authors...
Abstract Surface chromizing of Ti6Al4V alloys was achieved by double glow plasma surface metallurgy technology. Effects of working time, substrate–target distance, argon pressure and surface temperature of substrate on chromium coating were investigated in detail. The results show that the structure of coating achieved by double glow plasma surface chromizing includes a complete structure of surface deposited layer, inter diffusion layer and sputtering-affected zone. Working time has a significa...
16 CitationsSource
#1Zhong-Kai Qiu (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 3
#2Pingze Zhang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 18
Last. Ya Wang (NUAA: Nanjing University of Aeronautics and Astronautics)H-Index: 4
view all 6 authors...
Abstract In this paper, Zr and Zr–Er alloyed layers were deposited onto the TC11 alloy by using double-glow plasma surface alloying technique. Microstructure analysis showed that Zr and Zr–Er alloyed layers were both well bonded to the substrate without defects of porosity and cracks. Nanoindentation test reflected that Zr and Zr–Er alloyed layers not only possessed high hardness but also had good elastic property. The electrochemical behavior of Zr and Zr–Er alloyed layers was comparatively inv...
7 CitationsSource
#1Ying Zhang (Tennessee Technological University)H-Index: 24
Electrolytic codeposition is a promising alternative process for fabricating MCrAlY coatings. The coating process involves two steps, i.e., codeposition of CrAlY-based particles and a metal matrix of Ni, Co, or (Ni,Co), followed by a diffusion heat treatment to convert the composite coating to the desired MCrAlY microstructure. Despite the advantages such as low cost and non-line-of-sight, this coating process is less known than electron beam-physical vapor deposition and thermal spray processes...
14 CitationsSource
Cited By0
Newest