High-temperature mechanical behaviors of a WTaRe refractory alloy manufactured by selective electron beam melting

Xiao, Bang; Jia, Wenpeng; Wang, Jian; Zhou, Lian

doi:10.1016/j.ijrmhm.2023.106371

Cited by 3 publications

(2 citation statements)

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“…In this review we consider all combinations of W with other elements as alloys and refer to combinations of W with ceramic materials (such as carbides and oxides) as composites (Table 7). The AM-fabricated alloy groups that have been studied include W-Re [139][140][141], W-Ni [94,142], W-Ni-Fe [91,92,95,97,98,101,103,119,[143][144][145], W-Ni-Fe-Co [146], W-Ni-Fe-Cu [98], W-Ni-Cu [28,147], W-Cu [28,30,[148][149][150], W-Cu-Sn [151], W-Ta [32,[152][153][154][155], W-Ta-Re [156,157], W-Nb [124], W-Fe [93,158], W-Mo [159], and W-Cr [104]. W-based matrix composites with different ceramic phases such as TiC [160,161], ZrC [134], TaC [162], La2O3 [63], CeO2 [63], a mix of La2O3 -ZrO2 -...…”

Section: Additively Manufactured Tungsten Alloys and Compositesmentioning

confidence: 99%

“…Alloying elements play a pivotal role in enhancing the tensile properties of W, notably its elongation, which is otherwise limited or non-existent in unalloyed W. In AM for W-based materials, the alteration of mechanical properties that include microhardness (Figure 21c) has been a focal point for investigation. Li et al [157] examined the variation in Vickers microhardness due to VED in the context of W-3%Ta alloy. Operating at a substrate preheating temperature of 150°C and a 67°-layer angle, they reported a range of microhardness values from 493.8 to 535.6 Hv.…”

Section: Alloying and Ceramic Dispersions For Adjustments To Mechanic...mentioning

confidence: 99%

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Advancements and Perspectives in Additive Manufacturing of Tungsten Alloys and Composites: Challenges and Solutions

Zarinejad,

Tong,

Salehi

et al. 2024

Preprint

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This review examines additive manufacturing for refractory tungsten (W) and its alloys. It emphasizes the primary challenges and determining factors involved in additive manufacturing pure W, W alloys, and composites. Our focus in this regard extends to both process and alloying strategies designed to address critical issues such as densification, micro-cracking, and mechanical properties in tungsten-based components produced through additive techniques. Throughout the review, we organize existing knowledge and insights into convenient tables, serving as valuable resources for researchers embarking on a deeper exploration of these topics.

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Section: Additively Manufactured Tungsten Alloys and Compositesmentioning

confidence: 99%

Section: Alloying and Ceramic Dispersions For Adjustments To Mechanic...mentioning

confidence: 99%

Advancements and Perspectives in Additive Manufacturing of Tungsten Alloys and Composites: Challenges and Solutions

Zarinejad,

Tong,

Salehi

et al. 2024

Preprint

View full text Add to dashboard Cite

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First-principles and experiment perspectives of Hf alloying significantly strengthened TaW alloys

Tong,

Peng,

Liang

et al. 2024

Journal of Alloys and Compounds

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Advancements and Perspectives in Additive Manufacturing of Tungsten Alloys and Composites: Challenges and Solutions

Zarinejad,

Tong,

Salehi

et al. 2024

Crystals

View full text Add to dashboard Cite

This review explores additive manufacturing (AM) for refractory tungsten (W) and its alloys, highlighting the primary challenges and determining factors in the AM of pure W, W alloys and composites. The challenges mainly arise from W’s high melting point, low laser absorptivity, high thermal conductivity, high melt viscosity, high oxygen affinity, high ductile-to-brittle transition temperature, and inherent embrittlement, which lead to defects and anomalies in AM-produced parts. This review focuses on both processes and alloying strategies to address the issues related to densification, micro-cracking, and the resultant properties in W-based components. Cracking in additively manufactured W remains a persistent issue due to thermal stress, embrittlement, and oxide formation. Powder characteristics, process parameters, and thermal management strategies are crucial for W densification. Throughout the review, existing knowledge and insights are organized into comprehensive tables, serving as valuable resources for researchers delving deeper into this topic. Future research in W-AM should focus on understanding the interaction between AM process parameters and microstructural and material design. Advances in atomic-level understanding, thermodynamic modeling, and data analytics have the potential to significantly enhance the precision, sustainability, and applicability of W-AM.

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High-temperature mechanical behaviors of a WTaRe refractory alloy manufactured by selective electron beam melting

Cited by 3 publications

References 35 publications

Advancements and Perspectives in Additive Manufacturing of Tungsten Alloys and Composites: Challenges and Solutions

Advancements and Perspectives in Additive Manufacturing of Tungsten Alloys and Composites: Challenges and Solutions

First-principles and experiment perspectives of Hf alloying significantly strengthened TaW alloys

Advancements and Perspectives in Additive Manufacturing of Tungsten Alloys and Composites: Challenges and Solutions

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