期刊
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 477, 期 1-2, 页码 204-207出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2007.05.025
关键词
cavitation erosion; hardfacing alloy; epsilon martensite; grain refinement
类别
资金
- National Research Foundation of Korea [R11-2000-067-01002-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The effects of manganese and boron on the cavitation erosion behavior of austenitic Fe-Cr-C-Si-xMn-yB (x = 0, 10 wt%, y = 0, 0.3 wt%) hardfacing alloys were investigated by using a vibratory cavitation erosion tester. It was found that the cavitation erosion resistance increased with the addition of B. The increase of erosion resistance is thought to be due to the enhancement of a strain-induced alpha' martensitic transformation caused by grain size refinement with the addition of B. It was also found that epsilon martensite, which was easily formed by addition of Mn, was more effective than a' martensite at increasing cavitation erosion resistance. When both Mn and B were introduced, the cavitation erosion resistance improved further than was attributed to the enhancement of the strain-induced epsilon-martensite formation alone. (c) 2007 Elsevier B.V. All rights reserved.
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