Influence of Mo and W on Morphology and Alloy Content of Crystallized Carbides in Multi-component White Cast Iron

• Hashimoto Mitsuo

  Nippon Steel Hyper-metal Corporation

• Kubo Osamu

  Nippon Steel Hyper-metal Corporation

• Sasaguri Nobuya

  Dept. of Materials Science and Metallurgical Engineering, Kurume National College of Technology

• Matsubara Yasuhiro

  Dept. of Materials Science and Metallurgical Engineering, Kurume National College of Technology

Bibliographic Information

Other Title

• 多合金系白鋳鉄の晶出炭化物の形状とその組成に及ぼすモリブデン，タングステンの影響
• タゴウキンケイ ハク チュウテツ ノ ショウシュツ タンカブツ ノ ケイジョウ ト ソノ ソセイ ニ オヨボス モリブデン タングステン ノ エイキョウ

Abstract

  Multi-component white cast iron was developed for rolling mill rolls and is spreading widely. The morphology and alloy concentration of crystallized carbides were investigated by SEM, TEM and EDS analyses using three irons with typical chemical composition of Fe-2%C-5%Cr-5%V-Mo-W (mass%) system, and the influence of Mo and W on these irons was studied. The reaction of M₂C + γ-Fe → M₆C + MC + M₇C₃, which occurs by heat treatment, could be suppressed by increasing Mo content. It was found that there exists a linear relation between alloy content in each carbide and Mo ratio Mo/(Mo + W) of molten metal. In high W material, however, W contents of crystallized MC, M₂C and transformed M₆C crbides were saturated values.

Journal

• Journal of Japan Foundry Engineering Society

  Journal of Japan Foundry Engineering Society 75 (7), 479-486, 2003

  Japan Foundry Engineering Society

Keywords

• multi-alloy
• white cast iron
• high speed steel
• carbide
• rolling mill roll

Details

• CRID: 1390282681482855552
• NII Article ID: 130004556479
• NII Article ID: 10013907658
• NII Book ID: AN10514770
• DOI: 10.11279/jfes.75.479
• ISSN: 21855374
• ISSN: 13420429
• NDL BIB ID: 6643952
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6643952
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed