Small punch creep performance of additive manufactured nickel-based GH3536

IF 9.4 1区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Mechanical Sciences Pub Date : 2025-09-17 DOI:10.1016/j.ijmecsci.2025.110850

Xun Wang , Lianyong Xu , Bianyang Wu , Lei Zhao , Yongdian Han , Quanwei Sun

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Abstract

To quantify the effect of different heat treatment strategies (HTS) on the creep performance (CP) of additive manufactured (AM) Nickel-based GH3536, small punch creep (SPC) tests were employed. The microstructure characteristics after heat treatment (HT) were observed, and the surface defect characteristics of SPC specimens were visualized and parameterized. The sensitivity of HTS parameters to microstructure characteristics and defect characteristics was analyzed by various mathematical and statistical methods. SPC stresses and damage were analyzed for AM GH3536 alloy, and creep deformation modeling based on mean grain size (MGS) was conducted. The results of the Norton creep (NC) model, the Larson-Miller (LM) model, the mechanical work (MW) model, and the modified Monkman - Grant (MMG) model for predicting the SPC creep life of AM GH3536 containing defects were comparatively examined. The HTS-microstructure/defects-creep life prediction model was established by linking the HTS, microstructure characteristics and defect characteristics parameters, showing good prediction accuracy and realizing the prediction of SPC life of defective-containing AM alloys.

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添加剂制备镍基GH3536的小冲孔蠕变性能

为了量化不同热处理策略（HTS）对增材制造（AM）镍基GH3536蠕变性能（CP）的影响，采用了小冲孔蠕变（SPC）试验。观察了热处理后的微观组织特征，并对SPC试样的表面缺陷特征进行了可视化和参数化处理。采用各种数学和统计方法分析了高温超导参数对微结构特征和缺陷特征的敏感性。分析了AM GH3536合金的SPC应力和损伤，建立了基于平均晶粒尺寸（MGS）的蠕变模型。比较了Norton蠕变（NC）模型、Larson-Miller （LM）模型、力学功（MW）模型和改进的Monkman - Grant （MMG）模型对AM GH3536含缺陷材料SPC蠕变寿命的预测结果。将高温超导、显微组织特征和缺陷特征参数联系起来，建立了高温超导-显微组织/缺陷-蠕变寿命预测模型，具有较好的预测精度，实现了对含缺陷AM合金SPC寿命的预测。

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来源期刊

International Journal of Mechanical Sciences 工程技术-工程：机械

CiteScore

12.80

自引率

17.80%

发文量

769

审稿时长

19 days

期刊介绍： The International Journal of Mechanical Sciences (IJMS) serves as a global platform for the publication and dissemination of original research that contributes to a deeper scientific understanding of the fundamental disciplines within mechanical, civil, and material engineering. The primary focus of IJMS is to showcase innovative and ground-breaking work that utilizes analytical and computational modeling techniques, such as Finite Element Method (FEM), Boundary Element Method (BEM), and mesh-free methods, among others. These modeling methods are applied to diverse fields including rigid-body mechanics (e.g., dynamics, vibration, stability), structural mechanics, metal forming, advanced materials (e.g., metals, composites, cellular, smart) behavior and applications, impact mechanics, strain localization, and other nonlinear effects (e.g., large deflections, plasticity, fracture). Additionally, IJMS covers the realms of fluid mechanics (both external and internal flows), tribology, thermodynamics, and materials processing. These subjects collectively form the core of the journal's content. In summary, IJMS provides a prestigious platform for researchers to present their original contributions, shedding light on analytical and computational modeling methods in various areas of mechanical engineering, as well as exploring the behavior and application of advanced materials, fluid mechanics, thermodynamics, and materials processing.