Heat treatment process for material bodies made of a
high-temperature-resistant iron-nickel superalloy, and heat-treatment
material body
    1.
    发明授权
    Heat treatment process for material bodies made of a high-temperature-resistant iron-nickel superalloy, and heat-treatment material body 失效
    由耐高温铁镍合金制成的材料体的热处理工艺以及热处理材料体

    公开(公告)号:US6146478A

    公开(公告)日:2000-11-14

    申请号:US955631

    申请日:1997-10-22

    CPC classification number: C22F1/10

    Abstract: A heat treatment process for material bodies made of a high-temperature-resistant iron-nickel superalloy of the type IN 706 comprises the following steps: solution annealing at approximately 965 to 995.degree. C. for 5 to 20 hours, stabilization annealing at approximately 775 to 835.degree. C. for 5 to 100 hours, and precipitation hardening at 715 to 745.degree. C. for 10 to 50 hours and at 595 to 625.degree. C. for 10 to 50 hours. A heat-treated material body of this kind, made of a high-temperature-resistant iron-nickel superalloy of the type IN 706 exhibits a crack growth rate of less than 0.05 mm/h and/or exhibits a minimum elongation of 2.5% without cracks at a constant strain rate of 0.05%/h and a temperature of 600.degree. C.

    Abstract translation: 由IN 706型耐高温铁镍合金制成的材料体的热处理工艺包括以下步骤:在约965-995℃下固溶退火5至20小时,约775℃下进行稳定退火 至835℃5〜100小时,在715〜745℃下沉淀硬化10〜50小时,595〜625℃析出10〜50小时。 由这种类型的耐高温铁镍合金制成的这种类型的热处理材料体,其具有小于0.05mm / h的裂纹扩展速率和/或没有显示2.5%的最小伸长率 在0.05%/ h的恒定应变速率和600℃的温度下进行裂纹

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