書誌事項
- タイトル別名
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- Effects of Chromium and Molybdenum Contents on Properties of Ni-Cr-Mo-B Alloy with High Corrosion and Wear Resistance Consolidated by HIP
- HIPホウ デ コカセイケイ シタ Ni-Cr-Mo-Bケイ タイショク タイマモウ ゴウキン ノ ショ トクセイ ニ オヨボス Cr,Moリョウ ノ エイキョウ
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The effects of Cr and Mo contents on the properties of hot isostatic pressed (HIPed) materials with the compositions of Ni-X%Cr-Y%Mo-1.5%B (mass%) ((X,Y)=(10,36),(22,26),(34,16)) were investigated. Raw powders for these P/M materials were produced by gas atomization, followed by sieving less than 500 μm. The consolidation by HIP was carried out at 1423 K for 5 h under 147 MPa. Crystal structures and microstructures of these materials were investigated by X-ray diffraction analysis and scanning electron microscopy, respectively. Mechanical properties of Rockwell hardness and bending strength, corrosion resistance by immersion tests into various acid solutions and wear resistance by Ohgoshi-type abrasion test were also evaluated.<BR>Tetragonal M3B2 and M5B3 type complex borides were observed in the consolidated P/M materials. These complex borides with the size of approx. less than 5 μm were finely dispersed in Ni-based matrix. They showed Rockwell hardness from 40 to 50 HRC, which value increased with increasing Mo/Cr ratio, and bending strength comparable to that of P/M material with the composition of Co-1.6%C-30%Cr-8%W (ST-12). In addition, the present Ni-22%Cr-26%Mo-1.5%B P/M material with the most excellent mechanical properties revealed higher corrosion resistance than Ni-16%Cr-16%Mo-3.5%W-6.5%Fe (C-276) alloy and wear resistance comparable to ST-12.
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 59 (4), 167-172, 2012
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
- 1390282681288936192
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- NII論文ID
- 10030575804
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- NII書誌ID
- AN00222724
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- COI
- 1:CAS:528:DC%2BC38Xmt12ksb4%3D
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- ISSN
- 18809014
- 05328799
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- NDL書誌ID
- 023736308
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
