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Effect of alloying elements on the susceptibility of metallic alloys to brittle fracture

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Conclusions

A correlation of quite general character evidently exists relative to the positive effect of alloying elements on the resistance of metallic alloys to fracture in a number of cases. In particular, a physical connection, is observed between the transformation temperature of the matrix phase and the prevention of various types of brittle fracture. This is related, in principle, to the nature of the change in the electronic structure of the metal produced by alloying and (in titanium alloys) to suppression of the processes of decomposition of the solid solution. The well known positive correlation between the coldbrittleness threshold and the melting point of an alloy can be considered as a degenerate case in which the phase transformation temperature and melting point coincide.

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Authors
  1. A. I. Igolkin
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TsNII "Prometei". Translated from Metallovedenie i Termichiskaya Obrabotka Metallov, No. 4, pp. 2–4, Aprill, 1992.

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Igolkin, A.I. Effect of alloying elements on the susceptibility of metallic alloys to brittle fracture. Met Sci Heat Treat 34, 225–228 (1992). https://doi.org/10.1007/BF00702538

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