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

页码：1469 / 1483

页数：15

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