合金元素對新型鎳基粉末高溫合金的熱力學平衡相析出行為的影響

吳凱; 劉國權; 胡本芙; 吳昊; 張義文; 陶宇; 劉建濤

doi:10.13374/j.issn1001-053x.2009.06.007

合金元素對新型鎳基粉末高溫合金的熱力學平衡相析出行為的影響

doi: 10.13374/j.issn1001-053x.2009.06.007

吳凱¹,
劉國權^1,2,
胡本芙¹,
吳昊¹,
張義文^1,3,
陶宇³,
劉建濤³

1. 北京科技大學材料科學與工程學院, 北京 100083;
2. 北京科技大學新金屬材料國家重點實驗室, 北京 100083;
3. 北京科技大學冶金與生態工程學院, 北京 100083;
4. 鋼鐵研究總院高溫材料研究所, 北京 100081

基金項目:

國家高技術研究發展計劃資助項目(No.2007AA03A223)

詳細信息

作者簡介:
吳凱(1984-),男,博士研究生;劉國權(1952-),男,教授,博士生導師,E-mail:g.liu@ustb.edu.cn

中圖分類號: TG146.1⁺5;TG111.5
計量
- 文章訪問數: 263
- HTML全文瀏覽量: 71
- PDF下載量: 13
- 被引次數: 0
出版歷程
- 收稿日期: 2008-07-08
- 網絡出版日期: 2021-08-09

Effect of alloy elements on the precipitation behavior of thermodynamic equilibrium phases in new type nickel-based P/M superalloys

1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China;
3. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
4. High Temperature Materials Research Institution, CISRI, Beijing 100081, China

摘要

摘要:
通過熱力學平衡相計算方法,系統研究了某新型鎳基粉末高溫合金時效溫度下合金元素對熱力學平衡相析出行為的影響.計算結果表明:René 104合金析出的主要平衡相為γ'、MC、M₂₃C₆、M₃B₂和TCP相.Cr和Co含量主要影響TCP相的析出行為及γ'相的析出溫度,Cr含量對M₂₃C₆和M₃B₂的析出行為有一定的影響,Cr的建議質量分數為13%;Mo和W含量影響TCP相和M₃B₂的析出行為.質量比Al/Ti和Nb/Ta影響γ'相的析出行為,建議控制Al/Ti和Nb/Ta比平衡,以使γ'相起到理想的強化效果.C和B含量顯著影響碳化物和硼化物的析出量,還可間接抑制TCP相析出;Zr含量對MC和M₂₃C₆碳化物的析出有影響;增Co降Cr和調節合金元素含量以獲得小的點陣錯配度是第3代渦輪盤用粉末冶金高溫合金成分優化設計的趨勢.
- 粉末冶金高溫合金 /
- 熱力學計算 /
- 平衡相 /
- 渦輪盤 /
- 優化設計
Abstract:
The effects of alloy elements on the precipitation behaviors of equilibrium phases in new type nickel-based powder metallurgy (P/M) superalloys at aging temperature were studied systematically by a thermodynamic calculation method. The calculation results show that the equilibrium precipitation phases of René 104 are γ', MC, M₂₃C₆, M₃B₂ and TCP phases. Cr and Co contents mainly influence the precipitation behaviors of TCP phases and the precipitation temperature of γ' phase. Cr content also plays a role in the precipitation behaviors of M₂₃C₆ and M₃B₂. The suggested content of Cr is 13%. Mo and W contents influence the precipitation behaviors of TCP phases and M₃B₂. The mass ratios of Al/Ti and Nb/Ta affect the precipitation behaviors of γ' phase. It suggests controlling the values of Al/Ti and Nb/Ta to be unity in order to make γ' phase having desire strengthen effect. C and B contents significantly influence the precipitation volumes of carbides and borides; they can restrain the precipitation of TCP phases indirectly. Zr content influences the precipitation behaviors of MC and M₂₃C₆. Besides, it is revealed that the composition optimization and design trend of the 3rd generation P/M turbine disc superalloys is with more Co, less Cr and to obtain a smaller lattice mismatch by adjusting the contents of alloy elements.
- P/M superalloy /
- thermodynamic calculation /
- equilibrium phase /
- turbine disc /
- optimization design