織構(gòu)和{110}<001>織構(gòu)逐漸減弱,而{001}<110>織構(gòu)和{112}<111>織構(gòu)略為增強(qiáng)。冷變形Inconel 625合金再結(jié)晶退火處理后,隨著退火溫度與保溫時(shí)間的升高,再結(jié)晶分?jǐn)?shù)增大;隨著變形量的增大,Inconel 625合金發(fā)生完全再結(jié)晶時(shí)溫度減小,且發(fā)生完全再結(jié)晶時(shí)的晶粒尺寸變小,變形量為35%時(shí),再結(jié)晶過程主要是{112}<111>織構(gòu){123}<634>變形織構(gòu)轉(zhuǎn)變?yōu)閧110}<112>織構(gòu)、{001}<100>織構(gòu)與{124}<211>織構(gòu)。隨著變形量增加到50%及65%時(shí),冷變形產(chǎn)生的{123}<634>織構(gòu)在再結(jié)晶過程中轉(zhuǎn)變成了{(lán)124}<211>織構(gòu)。"/>

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形變誘導(dǎo)Inconel 625合金管材靜態(tài)再結(jié)晶行為
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蘭州理工大學(xué)材料科學(xué)與工程學(xué)院 甘肅 蘭州

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國家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(No. 2017YFA0700703);國家自然基金項(xiàng)目(No. 51661019)


Static Recrystallization Behavior of Deformation Induced Inconel 625 Superalloy Pipe
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School of Material Science and Engineering,Lanzhou University of Technology

Fund Project:

National Key Research and Development Program of China (Grant No. 2017YFA0700703); National Natural Science Foundation of China (Grant No. 51661019)

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    摘要:

    使用室溫壓縮變形與再結(jié)晶退火處理研究了Inconel 625高溫合金冷變形及再結(jié)晶行為,采用EBSD技術(shù)分析冷變形過程中的應(yīng)變分布、晶粒尺寸變化、組織與織構(gòu)演變,分析冷變形Inconel 625合金再結(jié)晶過程中再結(jié)晶分?jǐn)?shù)、晶粒尺寸、組織及織構(gòu)演變。研究表明,Inconel 625合金在變形量為35%~65%時(shí)具有良好的塑性,隨著變形量的增加,晶粒尺寸減小,應(yīng)變分布越均勻,{111}<112>織構(gòu)和{110}<001>織構(gòu)逐漸減弱,而{001}<110>織構(gòu)和{112}<111>織構(gòu)略為增強(qiáng)。冷變形Inconel 625合金再結(jié)晶退火處理后,隨著退火溫度與保溫時(shí)間的升高,再結(jié)晶分?jǐn)?shù)增大;隨著變形量的增大,Inconel 625合金發(fā)生完全再結(jié)晶時(shí)溫度減小,且發(fā)生完全再結(jié)晶時(shí)的晶粒尺寸變小,變形量為35%時(shí),再結(jié)晶過程主要是{112}<111>織構(gòu){123}<634>變形織構(gòu)轉(zhuǎn)變?yōu)閧110}<112>織構(gòu)、{001}<100>織構(gòu)與{124}<211>織構(gòu)。隨著變形量增加到50%及65%時(shí),冷變形產(chǎn)生的{123}<634>織構(gòu)在再結(jié)晶過程中轉(zhuǎn)變成了{(lán)124}<211>織構(gòu)。

    Abstract:

    The cold deformation and recrystallization behavior of Inconel 625 superalloy were studied by using compression deformation at room temperature and recrystallization annealing. The strain distribution, grain size change, microstructure and texture evolution during cold deformation, as well as recrystallization fraction, grain sizes, microstructure and texture evolution of cold deformed Inconel 625 superalloy during recrystallization annealing were analyzed by EBSD technique. Studies have shown that Inconel 625 superalloy has good plasticity when the deformation is 35%~65%. With the increase of deformation, the grain size decreases and the strain distribution is more uniform, {111}<112> texture and {110} <001> texture is gradually weakened, while the {001}<110> texture and the {112}<111> texture are slightly enhanced. After recrystallization annealing treatment of cold deformed Inconel 625 superalloy, the recrystallization fraction increases with the increase of annealing temperature and holding time. With the increase of deformation, the annealing temperature decreases when complete recrystallization with finer grains occurs. When the deformation is 35%, the recrystallization process is mainly {112}<111> texture and {123 <634> texture transformed into {110}<112> texture, {001}<100> texture and {124}<211> texture. With the increase of deformation amount to 50% and 65%, the {123}<634> texture produced by cold deformation transforms into {124}<211> texture during recrystallization.

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陳建軍,丁雨田,高鈺璧,馬元俊,王興茂,閆康.形變誘導(dǎo)Inconel 625合金管材靜態(tài)再結(jié)晶行為[J].稀有金屬材料與工程,2021,50(1):14~22.[Chen Jianjun, Ding Yutian, Gao Yubi, Ma Yuanjun, Wang Xingmao, Yan Kang. Static Recrystallization Behavior of Deformation Induced Inconel 625 Superalloy Pipe[J]. Rare Metal Materials and Engineering,2021,50(1):14~22.]
DOI:10.12442/j. issn.1002-185X.20190982

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  • 收稿日期:2019-11-25
  • 最后修改日期:2020-01-28
  • 錄用日期:2020-02-20
  • 在線發(fā)布日期: 2021-02-05
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