熱處理工藝對熱擠壓變形粉末高溫合金FGH95組織與性能的影響

胡本芙; 尹法章; 賈成廠; 金開生; 李慧英

doi:10.13374/j.issn1001-053x.2006.12.027

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熱處理工藝對熱擠壓變形粉末高溫合金FGH95組織與性能的影響

doi: 10.13374/j.issn1001-053x.2006.12.027

1. 北京科技大學材料科學與工程學院, 北京 100083;
2. 北京有色金屬研究總院國家金屬基復合材料工程技術研究中心, 北京 100088

基金項目:

國家"十五"民口配套重點研究項目(No.MKPT-01-127ZD)

詳細信息

作者簡介:
胡本芙(1937-),男,教授、博士生導師

中圖分類號: TF125.2⁺12
計量
- 文章訪問數: 144
- HTML全文瀏覽量: 35
- PDF下載量: 8
- 被引次數: 0
出版歷程
- 收稿日期: 2005-09-27
- 修回日期: 2006-04-14
- 網絡出版日期: 2021-08-24

Effect of heat treatment processing extrusion-deformed FGH95 alloy on the microstructure and properties of hot extrusion-deformed FGH95 alloy

1. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. National Engineering and Technology Center for Nonferrous Metals Composites, General Research Institute for Nonferrous Metals, Beijing 100088, China

摘要

摘要: 對比研究了FGH95合金在不同熱加工工藝和熱處理制度下合金的組織及γ'的分布,用光學顯微鏡、掃描電鏡(SEM)和透射電鏡(TEM)觀察了不同熱處理制度處理后合金的組織及時效后γ'的中心暗場相,測試了室溫(20℃)和高溫(650℃)材料的拉伸性能,并對高溫瞬時斷裂區斷口進行了對比分析.結果表明:相同熱處理工藝,HIP溫度越高,時效析出的γ'相尺寸越大;不同熱處理制度均能夠改變γ'的分布;鹽浴冷卻明顯增大中等尺寸γ'相數量,顯著提高合金高溫塑性.
- FGH95高溫合金 /
- 熱等靜壓 /
- 熱處理工藝 /
- 顯微組織
Abstract: The microstructure and γ' phase distribution of FGH95 P/M superalloy under different hot extrusions and heat treatments were investigated. OM, SEM and TEM were employed to study the microstructure after heat treatment and γ' phase's dark field images after aging treatment. Tensile properties at room temperature (20℃) and high temperature (650℃) were tested. The microstructure of instant fracture appearance at high temperature was also analyzed. The results show that under the same heat treatment the higher HIP temperature is, the larger γ'phase size during aging treatment is. Heat treatment processing can change the distribution of γ' phase, and salt cooling can increase the total number of γ' phase with middle size and markedly improve the high-temperature plasticity.
- FGH95 P/M superalloy /
- hot isostatic pressing (HIP) /
- heat treatment /
- microstructure