Oxidation response of additively manufactured eutectic Mo-Si-B alloys

Becker, J.D.; Fichtner, Dieter; Schmigalla, S.; Schultze, S.; Heinze, Christoph; Küsters, Yves; Hasemann, Georg; Schmelzer, Janett; Krüger, Manja

doi:10.1088/1757-899x/882/1/012002

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…The microstructure and oxidation performance of Mo-Si-B ternary alloys are closely related to the content of silicon. When the silicon content is low, the research of Mo-Si-B alloys is mostly concentrated at the region of Mo ss -Mo 5 SiB 2 -Mo 3 Si [35][36][37]. Wang et al [38] prepared the Mo-12.5Si-25B (at.%) alloy by arc melting from powder materials of Mo, Si and B, the corresponding microstructure is represented in Figure 1a.…”

Section: Low Silicon Content Of the Mo-si-b Ternary Alloysmentioning

confidence: 99%

Microstructure and Oxidation Behavior of Metal-Modified Mo-Si-B Alloys: A Review

Shen

et al. 2021

Coatings

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With the rapid development of the nuclear industry and the aerospace field, it is urgent to develop structural materials that can work in ultra-high temperature environments to replace nickel-based alloys. Mo-Si-B alloys are considered to have the most potential for new ultra-high temperature structural material and are favored by researchers. However, the medium-low temperature oxidizability of Mo-Si-B alloys limits their further application. Therefore, this study carried out extensive research and pointed out that alloying is an effective way to solve this problem. This work provided a comprehensive review for the microstructure and oxidation resistance of low silicon and high silicon Mo-Si-B alloys. Moreover, the influence of metallic elements on the microstructure, phase compositions, oxidation kinetics and behavior of Mo-Si-B alloys were also studied systematically. Finally, the modification mechanism of metallic elements was summarized in order to obtain Mo-Si-B alloys with superior oxidation performance.

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Section: Low Silicon Content Of the Mo-si-b Ternary Alloysmentioning

confidence: 99%

Microstructure and Oxidation Behavior of Metal-Modified Mo-Si-B Alloys: A Review

Shen

et al. 2021

Coatings

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“…A large number of studies have pointed out that Mo-Si-based alloys have outstanding high temperature performance characteristics, such as moderate density, strong electrical and thermal conductivity, ultra-high melting point, high thermal impact resistance, etc., which have been widely used in various industries [10,11]. However, these alloys also have some inherent defects that limit their generalization as structural materials [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Rare Earth Elements Enhanced the Oxidation Resistance of Mo-Si-Based Alloys for High Temperature Application: A Review

Wang

et al. 2021

Coatings

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Traditional refractory materials such as nickel-based superalloys have been gradually unable to meet the performance requirements of advanced materials. The Mo-Si-based alloy, as a new type of high temperature structural material, has entered the vision of researchers due to its charming high temperature performance characteristics. However, its easy oxidation and even “pesting oxidation” at medium temperatures limit its further applications. In order to solve this problem, researchers have conducted large numbers of experiments and made breakthrough achievements. Based on these research results, the effects of rare earth elements like La, Hf, Ce and Y on the microstructure and oxidation behavior of Mo-Si-based alloys were systematically reviewed in the current work. Meanwhile, this paper also provided an analysis about the strengthening mechanism of rare earth elements on the oxidation behavior for Mo-Si-based alloys after discussing the oxidation process. It is shown that adding rare earth elements, on the one hand, can optimize the microstructure of the alloy, thus promoting the rapid formation of protective SiO2 scale. On the other hand, it can act as a diffusion barrier by producing stable rare earth oxides or additional protective films, which significantly enhances the oxidation resistance of the alloy. Furthermore, the research focus about the oxidation protection of Mo-Si-based alloys in the future was prospected to expand the application field.

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“…A large number of studies have pointed out that Mo-Si-based alloys have outstanding high temperature performance characteristics, such as moderate density, strong electrical and thermal conductivity, ultra-high melting point, high thermal impact resistance, etc., which has been widely used in various industries [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Rare Earth Elements Enhanced the Oxidation Resistance of Mo-Si-Based Alloys for High Temperature Application: A Review

Yu¹,

Fu²,

Wang³

et al. 2021

Preprint

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Traditional refractory materials such as nickel-based superalloys have been gradually unable to meet the performance requirements of advanced materials. The Mo-Si-based alloy, as a new type of high temperature structural material, has entered the vision of researchers due to its charming high temperature performance characteristics. However, its easy oxidation and even "pesting oxidation" at medium temperatures limit its further applications. In order to solve this problem, researchers have conducted large numbers of experiments and made breakthrough achievements. Based on these research results, the effects of rare earth elements like La, Hf, Ce and Y on the microstructure and oxidation behavior of Mo-Si-based alloys were systematically reviewed in the current work. Meanwhile, this paper also provided an analysis about the strengthening mechanism of rare earth elements on the oxidation behavior for Mo-Si-based alloys after discussing the oxidation process. Furthermore, the research focus about the oxidation protection of Mo-Si-based alloys in the future was prospected to expand the application field.

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Oxidation response of additively manufactured eutectic Mo-Si-B alloys

Cited by 5 publications

References 14 publications

Microstructure and Oxidation Behavior of Metal-Modified Mo-Si-B Alloys: A Review

Microstructure and Oxidation Behavior of Metal-Modified Mo-Si-B Alloys: A Review

Rare Earth Elements Enhanced the Oxidation Resistance of Mo-Si-Based Alloys for High Temperature Application: A Review

Rare Earth Elements Enhanced the Oxidation Resistance of Mo-Si-Based Alloys for High Temperature Application: A Review

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