Effect of heat treatment on the high temperature fatigue life of single crystalline nickel base superalloy additively manufactured by means of selective electron beam melting

Meid C, Dennstedt A, Ramsperger M, Pistor J, Ruttert B, Lopez-Galilea I, Theisen W, Körner C, Bartsch M (2019)


Publication Language: English

Publication Type: Journal article

Publication year: 2019

Journal

Book Volume: 168

Pages Range: 124-128

DOI: 10.1016/j.scriptamat.2019.05.002

Abstract

The high temperature low cycle fatigue behavior of specimens manufactured from a single crystalline nickel base superalloy processed by selective electron beam melting (SEBM) has been investigated with respect to the effect of different heat treatments. The fatigue lifetime of heat treated material was significantly higher than that of as-built material. Applying hot isostatic pressing (HIP) with an integrated heat treatment resulted in even longer fatigue life. Lifetime limiting crack initiation occurred at interfaces of melting layers, at micro-porosity generated during solidification or, in HIP treated samples, at precipitates which formed at the location of collapsed pores.


Authors with CRIS profile

Related research project(s)

Involved external institutions

How to cite

APA:

Meid, C., Dennstedt, A., Ramsperger, M., Pistor, J., Ruttert, B., Lopez-Galilea, I.,... Bartsch, M. (2019). Effect of heat treatment on the high temperature fatigue life of single crystalline nickel base superalloy additively manufactured by means of selective electron beam melting. Scripta Materialia, 168, 124-128. https://dx.doi.org/10.1016/j.scriptamat.2019.05.002

MLA:

Meid, Carla, et al. "Effect of heat treatment on the high temperature fatigue life of single crystalline nickel base superalloy additively manufactured by means of selective electron beam melting." Scripta Materialia 168 (2019): 124-128.

BibTeX: Download