- 中国学术期刊(光盘版)全文收录期刊
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- 中国期刊全文数据库全文收录期刊
- 中国机械工程学会 理化检验分会 失效分析分会 会刊
| Citation: |
ZHAO Shouzhong, ZHU Zhiyuan, XU Chaofan, SHEN Jiabao, MIN Liang. Preparation and surface morphology observation of a new type of valve alloy NCF3015 metallographic specimen[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2024, 60(5): 24-27. DOI: 10.11973/lhjy-wl202405006
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A new method for preparing metallographic specimens of NCF3015 gas valve alloy with iron－based aging strengthening after aging treatment was introduced. The specimens were ground and polished using a pre－mill, and electrolytic corrosion was carried out using a 10% (volume fraction) oxalic acid solution. The surface morphology of specimen was observed using a stereomicroscope and an optical microscope. A solution was proposed to address the issues of scattered scratches, trailing edges and multiple planes on the surface of NCF3015 valve alloy specimens after aging treatment, resulting in a high－quality metallographic specimen with a smooth and scratch free surface.
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