Influence of alloying and testing conditions on mechanical properties and deformation behavior of 〈100〉 tungsten-based single crystals

Skotnicová, Kateřina; Kirillova, V. M.; Ermishkin, V. A.; Čegan, Tomáš; Juřica, Jan; Kraus, Martin; Бурханов, Г. С.

doi:10.1016/j.msea.2015.03.126

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…Kang et al prepared a W-Re-SiC alloy by arc melting, which possessed a high strain capacity (37.1%) at room temperature [ 22 ]. The grain sizes of single-crystal W-Re-Mo alloys fabricated by arc melting can reach 1~4 mm [ 23 ]. Large-sized W-Re alloys doped with a second phase such as HfC and ZrC were obtained by using the arc melting method [ 24 , 25 , 26 ].…”

Section: Preparation Methods Of W-re Alloysmentioning

confidence: 99%

“…Large-sized W-Re alloys doped with a second phase such as HfC and ZrC were obtained by using the arc melting method [ 24 , 25 , 26 ]. However, the molten state with arc melting is short, which makes the residual gas in the billet difficult to eliminate and leads to the formation of voids [ 22 , 23 , 27 ].…”

Section: Preparation Methods Of W-re Alloysmentioning

confidence: 99%

“…Skotnicova et al compared the yield strength of single-crystal W, W-2Re and W-1Mo-1Re. It was found that the yield strengths of the W-2Re and W-1Mo-1Re were 22% and 28% lower than that of W, respectively [ 23 ]. Liu et al investigated the influence of Ta on the microstructure and properties of W-10Re alloy [ 9 ].…”

Section: Properties and Strengthening Methods Of W-re Alloymentioning

confidence: 99%

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Preparation, Mechanical Properties and Strengthening Mechanism of W-Re Alloys: A Review

Zheng,

Lai,

Zhou

et al. 2023

Materials

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W-Re alloys are one of the most important refractory materials with excellent high-temperature performance that were developed to improve the brittleness of tungsten. In the present work, we firstly summarized the research progress on the preparation and strengthening methods of a W-Re alloy. Then, the strengthening mechanisms of the W-Re alloy were discussed, including the influence of Re, solid solution strengthening, second-phase reinforcement and fine-grain strengthening. The results showed that the softening effect of Re was mainly related to the transformation of the preferred slip plane and the introduction of additional d-valence electrons. Some transition elements and refractory metal elements effectively strengthened the W-Re alloy. Carbides can significantly enhance the high-temperature mechanical properties of W-Re alloys, and the reasons are twofold: one is the interaction between carbides and dislocations, and the other is the synergistic strengthening effect between carbides and Re. The objective of this work was to enhance the comprehension on W-Re alloys and provide future research directions for W-Re alloys.

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