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激光粉末床熔融GH3536合金高溫低周疲勞行為研究
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1.浙江大學(xué)材料科學(xué)與工程學(xué)院;2.浙江大學(xué)航空航天學(xué)院;3.上海理工大學(xué)材料與化學(xué)學(xué)院;4.東北大學(xué)材料科學(xué)與工程學(xué)院

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中國航空發(fā)動(dòng)機(jī)集團(tuán)(HFZL2019CXY001)；國家自然科學(xué)基金(52071284)


The Research of High Temperature Low-Cycle Fatigue Behavior of Laser Powder-Bed-Fused GH3536 Superalloy
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School of Materials Science and Engineering,Zhejiang University

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    摘要:

    激光粉末床熔融(L-PBF)技術(shù)在制備結(jié)構(gòu)復(fù)雜合金上具有獨(dú)特優(yōu)勢(shì)。本文研究了經(jīng)熱處理工藝改善的L-PBF成形GH3536合金的組織特征和855℃下的高溫低周疲勞行為,揭示了熱處理工藝對(duì)組織結(jié)構(gòu)和疲勞性能的影響。結(jié)合多種疲勞壽命預(yù)測模型分析,深入探討了L-PBF成形GH3536合金在不同應(yīng)變幅下的疲勞損傷行為,對(duì)增材制造試樣高溫低周疲勞壽命預(yù)測和增材制造零部件的應(yīng)用具有重要意義。

    Abstract:

    Laser powder-bed fusion (L-PBF) technology processes unique advantages in building complex-shape alloys. This paper invesgated the microstructure and high temperature low-cycle fatigue behavior of L-PBFed GH3536 superalloy in 855℃, and revealed the influence of heat treatment on microstructure and fatigue performance. By combining with different fatigue life prediction models, the fatigue damage behavior of L-PBFed GH3536 superalloy in various strain amplitudes was further discussed. These results are important for high temperature low-cycle fatigue life prediction and application of additive manufactured samples.

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倪浩涵,曾琦,張愷,田艷中,王江偉.激光粉末床熔融GH3536合金高溫低周疲勞行為研究[J].稀有金屬材料與工程,2023,52(6):2302~2308.[Ni Haohan, Zeng Qi, Zhang Kai, Tian Yanzhong, Wang Jiangwei. The Research of High Temperature Low-Cycle Fatigue Behavior of Laser Powder-Bed-Fused GH3536 Superalloy[J]. Rare Metal Materials and Engineering,2023,52(6):2302~2308.]
DOI：10.12442/j. issn.1002-185X.20220651

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歷史
  • 收稿日期:2022-08-15
  • 最后修改日期:2022-10-12
  • 錄用日期:2022-10-13
  • 在線發(fā)布日期: 2023-07-07
  • 出版日期: 2023-06-30