[1] Zhang D X, Wang J P, Wen Z X et al. V-notched bar creep life prediction: GH3536 Ni-based superalloy under multiaxial stress state[J]. Journal of Materials Engineering and Performance, 25, 2959-2968(2016).

[2] Liu H, Wang X M, Liu D S et al. Influence of Notch on creep properties of GH3536 nickel-based superalloy[J]. Rare Metal Materials and Engineering, 43, 2473-2478(2014).

[4] Herzog D, Seyda V, Wycisk E et al. Additive manufacturing of metals[J]. Acta Materialia, 117, 371-392(2016).

[5] Yadollahi A, Shamsaei N. Additive manufacturing of fatigue resistant materials: challenges and opportunities[J]. International Journal of Fatigue, 98, 14-31(2017).

[6] Zhao Z G, Bai L, Li L et al. Status and progress of selective laser melting forming technology[J]. Aeronautical Manufacturing Technology, 57, 46-49(2014).

[7] Yan X, Ruan X Q. Application and development of additive manufacturing technology in aeroengine[J]. Aeronautical Manufacturing Technology, 59, 70-75(2016).

[8] Yadroitsev I, Bertrand P, Smurov I. Parametric analysis of the selective laser melting process[J]. Applied Surface Science, 253, 8064-8069(2007).

[9] Montero-Sistiaga M L, Pourbabak S, van Humbeeck J et al. Microstructure and mechanical properties of Hastelloy X produced by HP-SLM (high power selective laser melting)[J]. Materials & Design, 165, 107598(2019).

[10] Wang F, Wu X H, Clark D. On direct laser deposited Hastelloy X: dimension, surface finish, microstructure and mechanical properties[J]. Materials Science and Technology, 27, 344-356(2011).

[11] Cheng X P, Du Z F, Chu S X et al. The effect of subsequent heating treatment on the microstructure and mechanical properties of additive manufactured Hastelloy X alloy[J]. Materials Characterization, 186, 111799(2022).

[12] Pourbabak S, Montero-Sistiaga M L, Schryvers D et al. Microscopic investigation of as built and hot isostatic pressed Hastelloy X processed by selective laser melting[J]. Materials Characterization, 153, 366-371(2019).

[13] Chakraborty N. The effects of turbulence on molten pool transport during melting and solidification processes in continuous conduction mode laser welding of copper-nickel dissimilar couple[J]. Applied Thermal Engineering, 29, 3618-3631(2009).

[14] Zhou Y. Rayleigh-Benard convection with lateral flows[D](2009).

[15] Liu C Y. The study and numerical simulation of Marangoni convection[D](2003).

[16] Montero-Sistiaga M L, Liu Z Z, Bautmans L et al. Effect of temperature on the microstructure and tensile properties of micro-crack free hastelloy X produced by selective laser melting[J]. Additive Manufacturing, 31, 100995(2020).

[17] Tomus D, Tian Y, Rometsch P A et al. Influence of post heat treatments on anisotropy of mechanical behaviour and microstructure of Hastelloy-X parts produced by selective laser melting[J]. Materials Science and Engineering: A, 667, 42-53(2016).

[18] Hosford W F[M]. Mechanical behavior of materials(2010).

[19] Hansen N. Hall-Petch relation and boundary strengthening[J]. Scripta Materialia, 51, 801-806(2004).

[20] Voisin T, Forien J B, Perron A et al. New insights on cellular structures strengthening mechanisms and thermal stability of an austenitic stainless steel fabricated by laser powder-bed-fusion[J]. Acta Materialia, 203, 116476(2021).