The Influence of Rare Earth Elements on Structure in Casting Low Alloy Tool Steel
-
摘要: 利用定量金相、透射電鏡、掃描電鏡、電子探針等實驗方法,研究稀土元素對低合金工具鋼鑄造組織的影響.結果表明:微量稀土的加入,可減少粗大碳化物的相對量,改善其分布狀況,細化奧氏體晶粒,減少鉻的枝晶偏析.Abstract: The influence of rare earth elements on structure in casting tool steel has been investigated by using optical microscope,high temperature hardometer, SEM, TEM, electron probe.The results show that the addition of micro rare earth elements to low alloy tool steel can decreases relative content of gross carbide, improve the dispersion, refine the austenite grain and reduce the dendritic segregation of chromium.
-
Key words:
- dendritic segregation /
- founding /
- tool steel/rare earth elements
-

計量
- 文章訪問數: 190
- HTML全文瀏覽量: 62
- PDF下載量: 6
- 被引次數: 0