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Hardening of Al-Cu-Mg alloy by energetic ion irradiation

高エネルギーイオン照射によるアルミ銅マグネシウム合金の硬化

光田 智昭*; 小林 一平*; 小杉 晋也*; 藤田 直樹*; 齋藤 勇一; 堀 史説*; 千星 聡*; 金野 泰幸*; 西田 憲二*; 曽根田 直樹*; 岩瀬 彰宏*

Mitsuda, Tomoaki*; Kobayashi, Ippei*; Kosugi, Shinya*; Fujita, Naoki*; Saito, Yuichi; Hori, Fuminobu*; Semboshi, Satoshi*; Kaneno, Yasuyuki*; Nishida, Kenji*; Soneda, Naoki*; Iwase, Akihiro*

We irradiated Al-Cu-Mg alloy with 10 MeV iodine ions at room temperature and measured the surface microhardness. We analyzed the microstructure using a three-dimensional atom probe. Irradiation for 3.5 h led to an increase in hardness comparable to that obtained after 4 days of aging at 423 K. Precipitates of about 2.9 nm in diameter were distributed homogeneously over the irradiated region. The nanometer-sized precipitates produced by the irradiation caused a remarkable increase in hardness.

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パーセンタイル:30.67

分野:Materials Science, Multidisciplinary

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