| 热等静压对喷射成形TiAl基合金孔隙率的影响 |
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| 引用本文： | 陈文哲 顾海澄. 热等静压对喷射成形TiAl基合金孔隙率的影响[J]. 理化检验(物理分册), 1997, 33(4): 18-20 |
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| 作者姓名： | 陈文哲 顾海澄 |
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| 作者单位： | [1]福州大学 [2]西安交通大学材料学院 |
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| 基金项目： | 福建省自然科学基金资助项目 |
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| 摘 要： | 着重研究了气体辅助喷射成形和离心喷射沉积形成的Ｔｉ－４８Ａｌ－２Ｍｎ－２Ｎｂ金属间化合物的孔隙率以及热等静压工艺对合金孔隙率的影响，利用Ｑｕａｎｔｉｍｅｔ图象分析仪定量测试了各种状态样品的孔隙率。结果表明，气体雾化成形合金的孔隙率约３．２９％，离心喷射盛开有合金的孔隙率约２．２０％，孔隙率的大小与喷射成形工艺密切相关。
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| 关 键 词： | 钛合金 喷射成形 热等静压 孔隙率 高温合金 |
EFFECTS OF HOT ISOSTATIC PRESSING ON THE POROSITY OF TITANIUM ALUMINIDE BY SPRAY FORMING |
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| Chen Wenzhe Qian Kuangwu Gu Haicheng. EFFECTS OF HOT ISOSTATIC PRESSING ON THE POROSITY OF TITANIUM ALUMINIDE BY SPRAY FORMING[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 1997, 33(4): 18-20 |
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| Authors: | Chen Wenzhe Qian Kuangwu Gu Haicheng |
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| Affiliation: | Chen Wenzhe Qian Kuangwu Gu Haicheng(Fuzhou University) (Xi'an Jiaotong University) |
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| Abstract: | The effects of hot isostatic pressing (HIP) on the porosities of Ti-48Al-2Mn-2Nb alloys formed by gas assisted spray forming (GSD) and centrifugal spray deposition (CSD) were investigated. The porosities of different samples by GSD, CSD processes and HIP process were quantitatively measured by means of an image analysis system, respectively. The results show that there always exist pores in the alloys by two spray forming processes. The porosity of alloy is related to the spray forming processes, which porosity level is about 3. 29% for GSD and 2. 20% for CSD, respectively, and the porosity levels increase as the spray formimg distances increase from 200mm to 500mm. HIP process can effectively close the pores formed from spray forming processes, and it makes the density of alloy reach apove 99. 7% of theoretical density of alloy. |
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| Keywords: | TiAl alloy spray forming hot isostatic pressing porosity. |
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