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<p>High-temperature nickel alloys are promising materials for the construction of components in high-temperature nuclear power installations. However, these alloys are classified as difficult-to-weld materials, which limits their application. This study presents the results of mechanical property and microstructure analyses of welded nickel alloy joints (grades CrNi80MoTiAl-&#xa0;VI, CrNi80MoTiNb+Y-VI, EK198-VI, and EK199-VI) in their as-received state and after thermal aging.</p>

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Impact of thermal aging on structure and properties of nickel alloy welded joints for liquid-salt reactors

  • 期刊论文

  • 发表日期：

    2025年10月8日

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  • A. B. Korostelev,
  • A. F. Shevakin,
  • P. A. Kharin,
  • M. V. Shishimirov,
  • V. O. Ivanov,
  • A. P. Pantyukhin,
  • Y. A. Korostelev,
  • M. D. Poroshina,
  • O. A. Shevakina

摘要

High-temperature nickel alloys are promising materials for the construction of components in high-temperature nuclear power installations. However, these alloys are classified as difficult-to-weld materials, which limits their application. This study presents the results of mechanical property and microstructure analyses of welded nickel alloy joints (grades CrNi80MoTiAl- VI, CrNi80MoTiNb+Y-VI, EK198-VI, and EK199-VI) in their as-received state and after thermal aging.