High-damping properties of Mn-Cu sintered alloys

Mikio Fukuhara; Fuxing Yin; Yoshiaki Ohsawa; Susumu Takamori

doi:10.1016/j.msea.2006.05.163

High-damping properties of Mn-Cu sintered alloys

Mikio Fukuhara, Fuxing Yin, Yoshiaki Ohsawa, Susumu Takamori

未来科学技術共同研究センター

研究成果: Article › 査読

37 被引用数 (Scopus)

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The mechanical damping of manganese-rich Mn-Cu sintered alloys were investigated and compared to that of M2052 cast alloy. The damping of the sintered alloys consisting of α-Mn and γ-MnCu phases is of the order of 10^-1 and insensitive to the frequency and temperature. Single phase γ-MnCu alloys, prepared by quenching from 1123 K, show two damping peaks; the large main peak is due to the twin boundaries and the small sub-peak is due to the fct ↔ fcc phase transformation. These peaks are larger than those observed for the M2052 alloy. The damping of Mn-Cu alloys aged at 723 K is insensitive to temperature.

本文言語	English
ページ（範囲）	439-443
ページ数	5
ジャーナル	Materials Science and Engineering A
巻	442
号	1-2 SPEC. ISS.
DOI	https://doi.org/10.1016/j.msea.2006.05.163
出版ステータス	Published - 2006 12月 20

ASJC Scopus subject areas

材料科学（全般）
凝縮系物理学
材料力学
機械工学

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10.1016/j.msea.2006.05.163

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title = "High-damping properties of Mn-Cu sintered alloys",

abstract = "The mechanical damping of manganese-rich Mn-Cu sintered alloys were investigated and compared to that of M2052 cast alloy. The damping of the sintered alloys consisting of α-Mn and γ-MnCu phases is of the order of 10-1 and insensitive to the frequency and temperature. Single phase γ-MnCu alloys, prepared by quenching from 1123 K, show two damping peaks; the large main peak is due to the twin boundaries and the small sub-peak is due to the fct ↔ fcc phase transformation. These peaks are larger than those observed for the M2052 alloy. The damping of Mn-Cu alloys aged at 723 K is insensitive to temperature.",

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T1 - High-damping properties of Mn-Cu sintered alloys

AU - Fukuhara, Mikio

AU - Yin, Fuxing

AU - Ohsawa, Yoshiaki

AU - Takamori, Susumu

PY - 2006/12/20

Y1 - 2006/12/20

N2 - The mechanical damping of manganese-rich Mn-Cu sintered alloys were investigated and compared to that of M2052 cast alloy. The damping of the sintered alloys consisting of α-Mn and γ-MnCu phases is of the order of 10-1 and insensitive to the frequency and temperature. Single phase γ-MnCu alloys, prepared by quenching from 1123 K, show two damping peaks; the large main peak is due to the twin boundaries and the small sub-peak is due to the fct ↔ fcc phase transformation. These peaks are larger than those observed for the M2052 alloy. The damping of Mn-Cu alloys aged at 723 K is insensitive to temperature.

AB - The mechanical damping of manganese-rich Mn-Cu sintered alloys were investigated and compared to that of M2052 cast alloy. The damping of the sintered alloys consisting of α-Mn and γ-MnCu phases is of the order of 10-1 and insensitive to the frequency and temperature. Single phase γ-MnCu alloys, prepared by quenching from 1123 K, show two damping peaks; the large main peak is due to the twin boundaries and the small sub-peak is due to the fct ↔ fcc phase transformation. These peaks are larger than those observed for the M2052 alloy. The damping of Mn-Cu alloys aged at 723 K is insensitive to temperature.

KW - High damping alloys

KW - Martensitic transformation

KW - Mn-Cu alloys

KW - Twin boundaries

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High-damping properties of Mn-Cu sintered alloys

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