書誌事項
- タイトル別名
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- Effect of Silicon Additions on Austempered Structure and Mechanical Properties in Ultrahigh Strength Low Alloy Steels.
- テイゴウキン チョウ キョウリョク コウ ノ オーステンパー ソシキ ト キカ
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説明
Silicon-modified 4340 (Si-4340) and 4340 steels have been studied to determine the effects of silicon addition on austempered structure and mechanical properties of ultrahigh strength low alloy steels. As a result of austempering Si-4340 steel in the bainitic temperature region (593-673K), the retention of a large amount of austenite (12-25vol.%) was observed in the carbon-free upper-bainitic ferrite region. Compared to the conventionally quenched and tempered steel (CQT), the austemper of Si-4340 steel increased fracture toughness (KIC) at 623K and below, owing to the increased Charpy impact energy and percent elongation, while the strength decreased. Compared to the CQT and 4340 steel austempered in the same temperature region, the austemper of the steel had detrimental effects on the KIC and other relevant mechanical properties at 643K and above. The results are described and discussed in terms of metallographic observations, X-ray measurements and fractography.
収録刊行物
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- 材料
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材料 43 (488), 509-514, 1994
公益社団法人 日本材料学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282680370635008
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- NII論文ID
- 110002301521
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- NII書誌ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 3873858
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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