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Improved distortion prediction in additive manufacturing using an experimental-based stress relaxation model
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Ruishan Xie, Qingyu Shi, Gaoqiang Chen
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Table 2 Temperature-dependent material parameters [25].
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Temperature, T
(℃) | Expansion coefficient,
α(μm/(mK)) | Elastic modulus,
E(×10GPa) | Yield strength,
σY(×102MPa) | | 20 | 8.64 | 10.4 | 7.68 | | 93 | 8.82 | 10.0 | 7.35 | | 205 | 9.09 | 9.42 | 6.85 | | 250 | 9.20 | 9.18 | 6.65 | | 315 | 9.33 | 8.84 | 6.35 | | 425 | 9.55 | 8.26 | 5.86 | | 500 | 9.70 | 7.86 | 5.52 | | 540 | 9.70 | 7.65 | 5.34 | | 650 | 9.70 | 7.07 | 4.85 | | 760 | 9.70 | 6.49 | 4.35 | | 800 | 9.70 | 4.81 | 3.27 | | 900 | 9.70 | 0.6 | 0.57 | | 1600 | 9.70 | 0.6 | 0.57 |
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