The Influence of Tungsten on Microstructure and PropertiesChromium Cast Iron
[1]LIU Xiaofang,ZHAO Jingyu,SUN Yufu.The Influence of Tungsten on Microstructure and PropertiesChromium Cast Iron[J].Journal of Zhengzhou University (Engineering Science),2009,30(03):122-125.
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
30卷
Number of periods:
2009年03期
Page number:
122-125
Column:
Public date:
1900-01-01
- Title:
- The Influence of Tungsten on Microstructure and PropertiesChromium Cast Iron
- Keywords:
- Tungsten; CR20 high chromium cast iron; organization; Performance
- CLC:
- -
- DOI:
- -
- Abstract:
- The influence of Tungsten on microstructure and properties of Cr20 high chromium cast iron wasstudied in this paper．The results indicate that the distribution of Tungsten is uniform in carbide and matrix．The carbide formation of Tungsten contains WCI一。，W6C2．54 and CW3．The as—cast microstructure consists ofmartensite。austenite and carbide．Hardness and Impact toughness of the sample containing 1％W are 56～59HRC and 10—12 J／em2，respectively．The wear resistant is 2 times as good as that of the sample with noTungsten addition．When Tungsten content reaches 3％，the impact toughness decreases obviously，but itswear resistant is 2．3 times as good as that of the sample with no Tungsten addition．For the sample containing1％W．hardness and impact toughness reach 60—6 1 HRC and 8—9 J／cm。respectively and the microstructureconsists of martensite，carbide and small quantity residual austenite，under the condition of quenching at1 050℃and tempering at 250℃．The wear resistance is 3．00 times as good as that of the sample with noTungsten addition．
- References:
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- Similar References:
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Last Update:
1900-01-01