Ａｌ‐１．２％Ｓｉ合金の析出硬化に及ぼす試料表面の影響

• 金谷 輝人

  岡山理科大学工学部

• 中川 惠友

  岡山理科大学大学院

書誌事項

タイトル別名

• Effect of specimen surface on the precipitation hardening of an Al-1.2mass%Si alloy.
• Al-1.2%Si合金の析出硬化に及ぼす試料表面の影響
• Al 1.2パーセント Si ゴウキン ノ セキシュツ コウカ ニ オヨボス

抄録

Dependence of precipitation hardening and aged structures of an Al–1.2 mass%Si alloy on the distance from specimen surface was studied by microhardness test and transmission electron microscopy. The specimen was water-quenched from 833 K or 853 K to 273 K, held for 60 s and subsequently aged at 373 K, 423 K or 473 K. Rate of age-hardening was slower in the surface layer than in the interior when the specimen was aged at relatively low temperatures (373 K and 423 K) .However the value of maximum hardness in the surface layer became the same as that in the interior. According to the results of electron microscopy, the size of Si phase precipitates formed in the surface layer was smaller than that in the center of specimen aged at 423 K. This difference was considered to be caused by the effect of the surface as a vacancy sink which slowed down the growth of Si phase precipitates near the surface.

収録刊行物

• 軽金属

  軽金属 47 (1), 39-43, 1997

  一般社団法人 軽金属学会

キーワード

• Al–Si alloy
• surface
• vacancy
• Si phase
• precipitation hardening

詳細情報

• CRID: 1390001206336545792
• NII論文ID: 10003794869
• NII論文ID: 10004010574
• NII論文ID: 10003904269
• NII書誌ID: AN00069773
• DOI: 10.2464/jilm.47.39
• COI: 1:CAS:528:DyaK2sXhsVyhu7s%3D
• ISSN: 18808018
• ISSN: 04515994
• NDL書誌ID: 4118763
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4118763
• 本文言語コード: ja
• データソース種別:
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