Development of cavitation resistant alloy as a replacement material

开发抗气蚀合金作为替代材料

• 批准号: 23560084
• 负责人: HATTORI Shuji
• 金额: $ 3.49万
• 依托单位: University of Fukui
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23560084/
• 关键词: 環境強度; キャビテーション; 壊食; 表面被覆材; TiNi合金

Stellite alloy is a high erosion resistant material and is widely used for valves. However, this alloy is difficult to fabricate and has a long half period for radio activated environment. Therefore, it was required that the replacement material should be developed. In this study, a PTA (plasma transferred arc) weld overlay was fabricated using the mixtures of pure titanium and nickel powders. The nickel content of weld overlay ranged from 40 at% to 80at%. It was found that the weld overlay of Ti40at%-Ni60at% show the highest erosion resistance. The erosion resistance of this weld overlay was improved with the 1hour heat treatment at 950 degree C. The erosion resistance of these Ti-Ni weld overlays was similar to that of the stellite alloy. It was concluded that the Ti-Ni weld overlay is the replacement material by the stellite alloy.

钨铬钴合金是一种高抗腐蚀材料，广泛用于阀门。 然而，这种合金很难制备，并且在辐射激活环境下具有较长的半衰期。因此，需要开发替代材料。 在这项研究中，PTA（等离子转移弧）堆焊使用纯钛和镍粉的混合物。堆焊层的镍含量范围为40at%~ 80at%。 结果表明，Ti40at%-Ni60at%堆焊层的抗冲蚀性能最好。在950 ℃下热处理1h后，堆焊层的抗冲蚀性能得到改善。 这些Ti-Ni堆焊层的耐冲蚀性与司太立合金的相似。 结果表明，钛镍堆焊层是司太立合金的替代材料。

项目成果

純金属粉を用いたTi-Ni混合粉肉盛材のキャビテーション壊食

纯金属粉末Ti-Ni混合粉末堆焊材料的空蚀

• 发表时间: 2012
• 作者: 服部修次;瞿超
• 通讯作者: 瞿超

Ti-Ni混合粉肉盛材のキャビテーション壊食に及ぼす化学成分及び熱処理の影響

化学成分和热处理对Ti-Ni混合粉末堆焊材料空蚀的影响

• 发表时间: 2012
• 作者: Masaharu Kuroda;Hiroki Matsubuchi;増田健一，栩川佑樹，石原外美;Takuya Uehara;古川晃,兼岩敏彦,高橋武志,飯塚博;服部修次，周天虹，瞿超
• 通讯作者: 服部修次，周天虹，瞿超

Cavitation Erosion of Ti-Ni Weld Overlays Using Pure Metal

纯金属钛镍堆焊层的空蚀

• 作者: Shuji Hattori;Tianghong Zhou
• 通讯作者: Tianghong Zhou