Microstructure and Mechanical Properties of CMSX-4 Single Crystals Prepared by Additive Manufacturing
書誌事項
- 公開日
- 2018-07-10
- 権利情報
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- https://creativecommons.org/licenses/by/4.0
- https://creativecommons.org/licenses/by/4.0
- DOI
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- 10.1007/s11661-018-4762-5
- 公開者
- Springer Science and Business Media LLC
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説明
<jats:title>Abstract</jats:title> <jats:p>Currently, additive manufacturing (AM) experiences significant attention in nearly all industrial sectors. AM is already well established in fields such as medicine or spare part production. Nevertheless, processing of high-performance nickel-based superalloys and especially single crystalline alloys such as CMSX-4<jats:sup>®</jats:sup> is challenging due to the difficulty of intense crack formation. Selective electron beam melting (SEBM) takes place at high process temperatures (~ 1000 °C) and under vacuum conditions. Current work has demonstrated processing of CMSX-4<jats:sup>®</jats:sup> without crack formation. In addition, by using appropriate AM scan strategies, even single crystals (SX SEBM CMSX-4<jats:sup>®</jats:sup>) develop directly from the powder bed. In this contribution, we investigate the mechanical properties of SX SEBM CMSX-4<jats:sup>®</jats:sup> prepared by SEBM in the as-built condition and after heat treatment. The focus is on hardness, strength, low cycle fatigue, and creep properties. These properties are compared with conventional cast and heat-treated material.</jats:p>
収録刊行物
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- Metallurgical and Materials Transactions A
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Metallurgical and Materials Transactions A 49 (9), 3781-3792, 2018-07-10
Springer Science and Business Media LLC
