On the Impact of an Integrated HIP Treatment on the Very High Cycle Fatigue Life of Ni-Based SX Superalloys

被引：9
|
作者：
Ormastroni, Luciana Maria Bortoluci [1 ]
Lopez-Galilea, Inmaculada [2 ]
Ruttert, Benjamin [2 ]
Weber, Sebastian [2 ]
Mauget, Florent [1 ]
Villechaise, Patrick [1 ]
Cormier, Jonathan [1 ]
机构：
[1] ISAE ENSMA, Phys & Mech Mat Dept, Inst Pprime, UPR CNRS 3346, 1 Ave Clement Ader,BP 40109, F-86961 Futuroscope, France
[2] Ruhr Univ Bochum, Inst Mat, Chair Mat Technol, Univ Str 150, D-44801 Bochum, Germany
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2023年 / 54卷 / 05期
关键词：
SINGLE-CRYSTAL SUPERALLOY; HEAT-TREATMENT; MICROSTRUCTURAL EVOLUTION; MECHANICAL-PROPERTIES; HIGH-TEMPERATURE; HIGH-PRESSURE; COOLING RATE; VHCF LIFE; CREEP; SOLIDIFICATION;
D O I：
10.1007/s11661-022-06882-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of an integrated hot isostatic pressing (HIP) treatment was investigated for two single-crystalline nickel-based superalloys under very high cycle fatigue at 1000 degrees C in fully reversed conditions (R-epsilon = - 1). The fatigue life is improved significantly by performing heat-treatments within the HIP unit. The HIP-compacted pore morphology and its impact on the crack initiation is considered as well. The HIPed specimens fail at low-angle grain boundary structures that have developed around the compacted casting pores.
引用
收藏
页码：1469 / 1483
页数：15
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