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首页> 外文期刊>Science and Engineering of Composite Materials >Effect of Ce 2O 3 on microstructures and oxidation resistance of laser melting deposited composites on a Ti alloy
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Effect of Ce 2O 3 on microstructures and oxidation resistance of laser melting deposited composites on a Ti alloy

机译：Ce 2 O 3 对Ti合金上激光熔敷沉积复合材料的组织和抗氧化性能的影响

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摘要

To our knowledge, here is the first time that Stellite SF12-Si_(3)N_(4)-B_(4)C-Ce_(2)O_(3)powders are deposited on a TA1 titanium alloy as the composites by a laser melted deposition (LMD) technique. It is noted that compared with a TA1 alloy substrate, an improvement of cyclic oxidation resistance is obtained for such LMD composites. Scanning electron microscopy results indicate that many nanocrystalline/amorphous phases are produced, which improve the oxidation resistance of such composites. Such composites exhibit better oxidation resistance than the composites without Ce_(2)O_(3)due to the formation of denser and finer-grain scale. The effect of Ce_(2)O_(3)on the formation mechanism and oxidation behavior of such composites is discussed in detail.
机译：据我们所知，这是第一次通过激光将Stellite SF12-Si_（3）N_（4）-B_（4）C-Ce_（2）O_（3）粉末作为复合物沉积在TA1钛合金上熔融沉积（LMD）技术。值得注意的是，与TA1合金基底相比，这种LMD复合材料的抗循环氧化性得到了改善。扫描电子显微镜结果表明产生了许多纳米晶/非晶相，这改善了这种复合材料的抗氧化性。由于形成更密和更细的氧化皮，这种复合材料比没有Ce_（2）O_（3）的复合材料表现出更好的抗氧化性。详细讨论了Ce_（2）O_（3）对这种复合材料的形成机理和氧化行为的影响。

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