書誌事項
- タイトル別名
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- Spark Sintering Behaviors on Mixtures of Fe – B and Fe Powders with Low Cost and their Characteristics
- 特集 硬質材料に関する研究課題と新たな展開 低コストFe-BとFeの混合粉末放電焼結における挙動とそれらの特性
- トクシュウ コウシツ ザイリョウ ニ カンスル ケンキュウ カダイ ト アラタ ナ テンカイ テイコスト Fe-B ト Fe ノ コンゴウ フンマツ ホウデン ショウケツ ニ オケル キョドウ ト ソレラ ノ トクセイ
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抄録
Spark sintering behaviors on mixed powders of Fe – B and Fe with low cost were investigated to develop the hard materials as substitution of WC – Co alloys. The cheap powders with mean composition of Fe – 19.1 wt% B consisting of mixed phases of B, FeB, Fe2B and Fe were ball-milled for crushing the particles with 45 µm. The ball milled Fe – B powders with 10 µm were 0, 10 and 50 vol% Fe added (hereafter called, 100, 90 and 50FeB, respectively). The spark sintering technique was utilized to fabricate ubiquitously hard-materials compacts. The promising maximum temperatures in sintering were defined on three compacts on the basis of the optimization of their Rockwell hardness and relative density. Rockwell hardness number on C scale was changed 66 to 71 depending on Fe contents on three compacts with the densities of 92 − 97 %, and the value of 100FeB compact was the same as that of WC – 7.8Co. The 100, 90 and 50FeB compacts showed the fracture strain of 0.32, 0.43 and 0.53 %, or fracture stress of 345, 435 and 447 MPa, respectively, in three points bending tests at 293 K. The fracture stress and strain were 5 − 17 % decreased and 7 − 9 % increased, respectively, on three points bended samples at 773 K, compared with those at 293 K.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 60 (9), 379-386, 2013
一般社団法人 粉体粉末冶金協会
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詳細情報 詳細情報について
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- CRID
- 1390001206312360064
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- NII論文ID
- 10031203342
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- NII書誌ID
- AN00222724
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- COI
- 1:CAS:528:DC%2BC3sXhsFyqtr7N
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 024923432
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可