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    鎳基合金旋壓管坯的退火裂紋

    ANNEALING CRACKS OF Ni-BASED ALLOY BILLETS FOR POWER SPINNED PIPES

    • 摘要: 研究了鎳基合金冷變形管坯退火裂紋與加熱溫度的關系和退火裂紋產(chǎn)生的原因。試驗表明,采用高溫入爐和快速升溫以及將軟化退火溫度降至1065℃的工藝措施,可明顯消除退火裂紋。

       

      Abstract: The relationship between annealing cracks and heating temperatures of Ni-based alloy cold-formed billets and the causes of annealing crack occurrence are studied. The experiment shows that the annealing cracks can be evidently eliminated by taking such measures as charging billets at high temperature, quickly rising temperature as well as lowering the softening-annealing temperature down to 1065℃.

       

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