| YANG Ying-ge,ZHOU Hai,CHEN Fe,WAN Han-cheng,XI Ming.Study on Hardness of Multicomponent Permeated 20 Steel[J],36(4):20-21 |
| Study on Hardness of Multicomponent Permeated 20 Steel |
| Received:February 28, 2007 Revised:August 10, 2007 |
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| DOI： |
| KeyWord:20 steel Multicomponent permeation Microhardness |
| Author | Institution |
| YANG Ying-ge |
Beijing Institute of Petro-chemical Technology, Beijing , China |
| ZHOU Hai |
Beijing Institute of Petro-chemical Technology, Beijing , China |
| CHEN Fe |
Beijing Institute of Petro-chemical Technology, Beijing , China |
| WAN Han-cheng |
Beijing Institute of Petro-chemical Technology, Beijing , China |
| XI Ming |
Beijing Institute of Petro-chemical Technology, Beijing , China |
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| Abstract: |
| Performance of 20 steel was studied by low temperature gas multicomponent permeation technique. Carbon, nitrogen, oxygen were infiltrated into the material. The phase construction and micro-structure of alloying layer were investigated by XRD and SEM technique. The experimental results show that penetrated layer contains oxide, nitride and carbide. And the nitride is primary. The thickness of penetrating layer is about 50pjm. Compared with original material, the penetrated layer has much higher surface hardness. These properties have important significance and foreground in industry. |
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