書誌事項
- タイトル別名
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- Effect of chemical composition on microstructure and characteristics of high chromium Ni-hard cast iron
- コウクロムケイ ニハード チュウテツ ノ ソシキ ト ザイリョウ トクセイ ニ オヨボス カガク セイブン ノ エイキョウ
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Effect of chemical composition on the microstructure and characteristics of Ni-hard cast iron has been investigated in order to improve the wear resistance and other material properties by precipitation of hard M7C3 carbide and graphite.<br> A small amount of graphite and M7C3 type carbide crystallize together in the cast iron of the composition of 2.6mass%C-7.0mass%Cr. The volume fraction of graphite increases with an increase in carbon content. Nickel has a strong effect on the transformation of matrix and the highest hardness is obtained in the cast iron containing 5.0mass%Ni in as-cast state, because of the transformation of austenite to martensite. Tensile strength decreases as carbon content gets over 2.6mass%. Heat crack length is the shortest in the cast iron of 2.6mass%C, and wear loss and amount of sticking decrease with increasing chromium and molybdenum contents. It was found that the optimum chemical composition of high chromium Ni-hard cast iron containing M7C3 type carbide and a small volume fractionofgraphiteis 2.6mass%C-2.5mass%Si-5.0mass%Ni-7.0mass%Cr-2.4mass%Mo, to improve the wear resistance remaining good mechanical properties of conventional Ni-hard cast iron.
収録刊行物
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- 鋳造工学
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鋳造工学 77 (5), 293-300, 2005
公益社団法人 日本鋳造工学会
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詳細情報
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- CRID
- 1390282681484613248
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- NII論文ID
- 10015700704
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- NII書誌ID
- AN10514770
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- ISSN
- 21855374
- 13420429
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- NDL書誌ID
- 7355706
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可