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Embrittlement of alloy 625 and effect of remedial treatments

机译:625合金的脆化和补救措施的影响

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摘要

This study investigated the susceptibility of alloy 625 to embrittlement in the temperature range 600-800? using simulated thermal treatments, specimens from ex-service petroleum industry components and subsequent remedial heat treatment. Embrittlement was quantified by conducting impact testing using the Charpy V-notch method and the results discussed in terms of precipitate formation and ageing. The results of annealing the exposed samples at high temperature are presented, demonstrating that embrittlement is most detrimental at intermediate temperatures (i.e. 650?). The study confirms that a 24-h remedial heat treatment of embrittled alloy 625 leads to significant recovery of impact energy on ex-service samples.
机译:这项研究调查了625合金在600-800°C温度范围内脆化的敏感性。使用模拟热处理,石油服务业前服务部门的标本以及随后的补救性热处理。通过使用夏比V型缺口法进行冲击试验来量化脆化,并在沉淀物形成和老化方面讨论了结果。给出了在高温下对暴露的样品进行退火的结果,表明脆化在中间温度(即650℃)下是最有害的。该研究证实,脆性合金625的24小时补救热处理可显着回收对退役样品的冲击能。

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