Effect of V on the Tensile Strength of Sintered Cr-Mo Alloyed Steel Powder Compacts.

• Unami Shigeru

  Technical Research Laboratories, Kawasaki Steel Corp.

• Furukimi Osamu

  Technical Research Laboratories, Kawasaki Steel Corp.

• Uenosono Satoshi

  Technical Research Laboratories, Kawasaki Steel Corp.

• Ogura Kuniaki

  Technical Research Laboratories, Kawasaki Steel Corp.

Bibliographic Information

Other Title

• Ｃｒ‐Ｍｏ系合金鋼粉の焼結体強度に及ぼすＶの影響
• Cr Moケイ ゴウキン コウフン ノ ショウケツタイ キョウド ニ オヨボス

Abstract

A prealloyed lCr-0.3Mo-0.3V(mass%) steel powder was developed to obtain the high strength sintered compacts. This new sintered 1Cr-0.3Mo-03V powder compact, which is Mn-less, made it possible to extend the range of the cooling rate after sintering to attain higher strength than that of sintered 1Cr-0.3Mo steel, and gave a tensile strength of more than 800 MPa and a rotating bending fatigue strength of 31OMPa at the cooling rates of 1 to 30°C/min. The wide range of cooling rates at which high strength can be obtained was attributed to a decrease in hardenability and the production of a fine pearlite structure by V addition. The improvement of the strength for the compacts added V is attributed to the precipitation hardening of V carbonitrides, as well as a narrow pearlite lamellar spacing.

Journal

• Journal of the Japan Society of Powder and Powder Metallurgy

  Journal of the Japan Society of Powder and Powder Metallurgy 43 (9), 1106-1110, 1996

  Japan Society of Powder and Powder Metallurgy

Keywords

• low alloy steel
• strength
• pearlite
• bainite
• sintering
• precipitation hardening

Details

• CRID: 1390282681285056640
• NII Article ID: 10002013074
• NII Book ID: AN00222724
• DOI: 10.2497/jjspm.43.1106
• ISSN: 18809014
• ISSN: 05328799
• NDL BIB ID: 4036695
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4036695
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed