書誌事項
- タイトル別名
-
- Evaluation of Fatigue Limit and Estimation of Fatigue Characteristics in Spheroidal Vanadium Carbides Cast Iron
- キュウジョウ バナジウム タンカブツ チュウテツ ノ ヒロウ ゲンド ヒョウカ ト ヒロウ トクセイ ノ スイテイ
この論文をさがす
抄録
This study aims to elucidate the effects of vanadium carbide (VC) on the fatigue strength of spheroidal vanadium carbide cast iron (SCI-VCrNi) added with chromium (Cr) and nickel (Ni). The VCs in SCI-VCrNi were examined for the effects of fatigue strength compared with SUS304 using a plane bending fatigue test machine. <br> As a result of plane bending testing, the fatigue limit of SCI-VCrNi was found to be330MPa.The fatigue limit of SUS304 was 200MPa. The fatigue strength of SCI-VCrNi was higher than that of SUS304. The results of fracture surface observation indicated the crack initiation point to be the cluster of VC. We therefore quantitatively calculated the size at which the cluster of VC becomes the crack initiation point by using the √area parameter. Moreover, we also introduced artificial small defects in a SCI-VCrNi specimen, to consider how the behavior of crack growth affects the VC. ΔKth was considered from the ΔK and crack growth was calculated from the √area parameter of the artificial small defect. The results showed that the ΔKth of SCI-VCrNi may be 5 to 6MPa √m. Although the fatigue strength of SCI-VCrNi is enhanced by the VC in this matrix, the cluster of VC became the crack initiation point, and the distribution morphology of VC affected the fatigue strength.
収録刊行物
-
- 鋳造工学
-
鋳造工学 83 (6), 322-326, 2011
公益社団法人 日本鋳造工学会
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1390001206510808192
-
- NII論文ID
- 10028268304
-
- NII書誌ID
- AN10514770
-
- ISSN
- 21855374
- 13420429
-
- NDL書誌ID
- 11149012
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDL
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可