Mechanical and high-temperature corrosion properties of AlTiCrNiTa high entropy alloy coating prepared by magnetron sputtering for accident-tolerant fuel cladding

Zhang, Sha; Liu, Chunhai; Yang, Jijun; Zhang, Wei; He, Linxin; Zhang, Ruiqian; Yang, Hongyan; Wang, Jian; Long, Jianping; Hong, Chen

doi:10.1016/j.surfcoat.2021.127228

Cited by 47 publications

(11 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The nuclear applications of MoNbTaTiW are also of interest due to the relatively low thermal neutron capture cross section of many of the constituent elements, and may therefore find applications as components in fusion or fission systems. For example, HEAs AlTiCrNiTa [26], CrCuFeMoNi [27], and AlCrMoNbZr [28] have been investigated as advanced technology fuel coatings for zirconium-based fuel rods.…”

Section: Introductionmentioning

confidence: 99%

Predicting the thermal expansion of body-centred cubic (BCC) high entropy alloys in the Mo–Nb–Ta–Ti–W system

et al. 2022

View full text Add to dashboard Cite

In this study, the thermal expansion behaviour of equiatomic alloys in the Mo-Nb-Ta-Ti-W system is studied to provide a predictive method to assess the behaviour of this and other high entropy alloy systems. The simulations used are based on first principles density functional perturbation theory and the quasi-harmonic approximation. Calculations have been used to predict the stability and phonon properties of increasingly complex alloys in the Mo-Nb-Ta-Ti-W system and their thermal expansion coefficients have been predicted. These are benchmarked against rule of mixtures predictions and experimental observations where available. We have shown that atomic scale modelling techniques can be used to reliably predict thermal expansion of a range of BCC high entropy alloys and concentrated solid solutions of relevance to nuclear fusion and fission applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Predicting the thermal expansion of body-centred cubic (BCC) high entropy alloys in the Mo–Nb–Ta–Ti–W system

et al. 2022

View full text Add to dashboard Cite

show abstract

“…HEAs have excellent performance in mechanical properties [ 14 ], radiation resistance [ 15 ], oxidation resistance [ 16 ], corrosion resistance [ 17 , 18 ], etc., and are one of the candidates for new ATF cladding. For example, Zhao et al used radio-frequency magnetron sputtering (RF) technology to prepare an AlTiCrNiTa coating with a thickness of 3 um on a zirconium alloy substrate to simulate the corrosion of PWR primary water for 45 days to produce NiCr 2 O 4 on the surface, which can effectively protect the substrate from oxidation [ 19 ]. Tao et al prepared AlCrFeCuNb x bulk by arc melting.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, H. Kim et al have prepared a set of alumina-forming duplex stainlesssteel (ADSS) alloys [10] with a nominal composition range of Fe- (18)(19)(20)(21)Ni- (16)(17)(18)(19)(20)(21)Cr- (5)(6)Al. Benefiting from the oxidation resistance of Al and Cr, this series of alloys have excellent performance in simulated PWR primary water corrosion and high-temperature steam oxidation.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of Alx(CrFeNi)1−x HEA under Simulated PWR Primary Water

Luo

Yang

et al. 2022

Materials

View full text Add to dashboard Cite

High-entropy alloys (HEAs) have great potential as accident-tolerant fuel (ATF) cladding. Aluminum-forming duplex (BCC and FCC) stainless-steel (ADSS) is a candidate for ATF cladding, but the multiphase composition is detrimental to its corrosion resistance. In this paper, two single-phase HEAs were prepared by adjusting the content of each element in the ADSS alloy. The two HEAs were designed as Al0.05(CrFeNi)0.95(FCC) and Al0.25(FeCrNi)0.75(BCC). Their corrosion behavior under simulated pressurized water reactor (PWR) primary water was investigated. The corrosion products and corrosion mechanisms of these two HEAs were explored. The results show that the corrosion resistance of HEA alloys containing FCC is better than that of BCC and ADSS alloys. At the same time, the reason why the BCC structure composed of these four elements is not resistant to corrosion is revealed.

show abstract

“…In our work, the novel AlNbTiZr MEA coatings with various Al content were designed and investigated for the ATF cladding coating. Considering the application requirements of PWR under accident conditions, four metal elements (Al, Nb, Ti and Zr) were deliberately selected for the following causes [31][32][33][34][35] The choice of Zr element is to improve the coatingsubstrate bonding force by enhancing the metallurgical bonding. What calls for special attention is that the effect of Al content needs to be further explored because of its two-folds on the microstructure and properties of the coating system.…”

Section: Introductionmentioning

confidence: 99%

Effect of Al Concentration on Microstructure and Properties of AlNbTiZr Medium-Entropy Alloy Coatings

et al. 2021

Self Cite

View full text Add to dashboard Cite

The AlNbTiZr medium-entropy alloy (MEA) coatings with different Al contents were prepared on N36 zirconium alloy substrates by RF magnetron co-sputtering. The morphology, microstructure, mechanical properties, surface wettability and corrosion resistance of the AlNbTiZr MEA coatings were studied to evaluate the surface protection behavior of zirconium alloy cladding under operation conditions of a pressurized water reactor. The results showed that all the coatings were composite structures with amorphous and bcc-structured nanocrystals. With the increase of Al content, both the elastic modulus and hardness decreased first and then increased. The hydrophobicity of the coatings was enhanced compared with that of the substrate. The 10.2 at.% Al AlNbTiZr coating had the best corrosion resistance and the minimum oxygen penetration depth, which originated from the formation of a denser oxide layer consisting of Nb2Zr6O17 and ZrO2. This study provides an improved idea for the design and development of Al-containing MEA coating materials for accident tolerant fuel.

show abstract

Mechanical and high-temperature corrosion properties of AlTiCrNiTa high entropy alloy coating prepared by magnetron sputtering for accident-tolerant fuel cladding

Cited by 47 publications

References 49 publications

Predicting the thermal expansion of body-centred cubic (BCC) high entropy alloys in the Mo–Nb–Ta–Ti–W system

Predicting the thermal expansion of body-centred cubic (BCC) high entropy alloys in the Mo–Nb–Ta–Ti–W system

Corrosion Behavior of Alx(CrFeNi)1−x HEA under Simulated PWR Primary Water

Effect of Al Concentration on Microstructure and Properties of AlNbTiZr Medium-Entropy Alloy Coatings

Contact Info

Product

Resources

About