On direct laser deposited Hastelloy X: dimension, surface finish, microstructure and mechanical properties

Research output: Contribution to journalArticle

Standard

On direct laser deposited Hastelloy X: dimension, surface finish, microstructure and mechanical properties. / Wang, F; Wu, Xinhua; Clark, D.

In: Materials Science and Technology, Vol. 27, No. 1, 01.01.2011, p. 344-356.

Research output: Contribution to journalArticle

Harvard

APA

Vancouver

Author

Bibtex

@article{09ed9bd7c4284027824ed7ee9cbb1757,
title = "On direct laser deposited Hastelloy X: dimension, surface finish, microstructure and mechanical properties",
abstract = "For the first time, the influence of laser power, scan speed, scan spacing and nominal laser power density on the tensile properties, dimensional accuracy, surface roughness, number of cracks and top surface concavity of samples of Hastelloy X manufactured using a laser powder bed facility, has been assessed systematically on three-dimensional samples. It has been found that the nominal laser power density is the dominant factor, but the influence of scan spacing and scan speed can sometimes be significant. Density of > 99.5% can be obtained using most conditions. Cracks are observed at corners of the samples. An optimised process window can be derived from the above systematic analysis under which the component can be built smoothly, with good surface finish and dimensional accuracy, consistent mechanical properties and the properties are comparable with those of forged products.",
keywords = "Hastelloy X, Rapid manufacturing, Laser powder bed, Direct laser deposition",
author = "F Wang and Xinhua Wu and D Clark",
year = "2011",
month = jan,
day = "1",
doi = "10.1179/026708309X12578491814591",
language = "English",
volume = "27",
pages = "344--356",
journal = "Materials Science and Technology",
issn = "0267-0836",
publisher = "Maney Publishing",
number = "1",

}

RIS

TY - JOUR

T1 - On direct laser deposited Hastelloy X: dimension, surface finish, microstructure and mechanical properties

AU - Wang, F

AU - Wu, Xinhua

AU - Clark, D

PY - 2011/1/1

Y1 - 2011/1/1

N2 - For the first time, the influence of laser power, scan speed, scan spacing and nominal laser power density on the tensile properties, dimensional accuracy, surface roughness, number of cracks and top surface concavity of samples of Hastelloy X manufactured using a laser powder bed facility, has been assessed systematically on three-dimensional samples. It has been found that the nominal laser power density is the dominant factor, but the influence of scan spacing and scan speed can sometimes be significant. Density of > 99.5% can be obtained using most conditions. Cracks are observed at corners of the samples. An optimised process window can be derived from the above systematic analysis under which the component can be built smoothly, with good surface finish and dimensional accuracy, consistent mechanical properties and the properties are comparable with those of forged products.

AB - For the first time, the influence of laser power, scan speed, scan spacing and nominal laser power density on the tensile properties, dimensional accuracy, surface roughness, number of cracks and top surface concavity of samples of Hastelloy X manufactured using a laser powder bed facility, has been assessed systematically on three-dimensional samples. It has been found that the nominal laser power density is the dominant factor, but the influence of scan spacing and scan speed can sometimes be significant. Density of > 99.5% can be obtained using most conditions. Cracks are observed at corners of the samples. An optimised process window can be derived from the above systematic analysis under which the component can be built smoothly, with good surface finish and dimensional accuracy, consistent mechanical properties and the properties are comparable with those of forged products.

KW - Hastelloy X

KW - Rapid manufacturing

KW - Laser powder bed

KW - Direct laser deposition

U2 - 10.1179/026708309X12578491814591

DO - 10.1179/026708309X12578491814591

M3 - Article

VL - 27

SP - 344

EP - 356

JO - Materials Science and Technology

JF - Materials Science and Technology

SN - 0267-0836

IS - 1

ER -