Influence of Grain Size on Tensile and Stress Rupture Behavior of an Advanced Wrought Ni-Based Superalloy
نویسندگان
چکیده
In this study, the tensile and stress rupture behavior were investigated on GH4151 alloy with different grain sizes. The test samples obtained from turbine disk positions. analysis of micro-structure, size, fracture morphology carried out by several typical characteristics way, indicating that influence size is mainly affected number boundary, which affects superalloy. strength fine-grained specimens are higher than coarse-grained specimens, so plasticity. At same condition, life reduced 82.5 h to 33.5 as decreased 22.3 μm 11.1 μm, 59.4%. Moreover, elongation rate increased 6.60 % 25.48 decreased, 286%.
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ژورنال
عنوان ژورنال: Advances in transdisciplinary engineering
سال: 2022
ISSN: ['2352-751X', '2352-7528']
DOI: https://doi.org/10.3233/atde220418