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| 新型镍基粉末高温合金微量元素的相研究 | |
| 引用本文： | 吴 凯,刘国权,胡本芙,吴 昊,张义文,陶 宇,刘建涛.新型镍基粉末高温合金微量元素的相研究[J].稀有金属材料与工程,2011,40(2):279-284. |
| 作者姓名： | 吴 凯 刘国权 胡本芙 吴 昊 张义文 陶 宇 刘建涛 |
| 作者单位： | 1. 北京科技大学,北京,100083 2. 北京科技大学,北京,100083;钢铁研究总院,北京,100081 3. 钢铁研究总院,北京,100081 |
| 基金项目： | 国家预研基金(9140A12070507QT0202)；国家高技术研究发展计划（2007AA03A223） |
| 摘 要： | 对新型第3代粉末高温合金母合金、等离子体旋转电极法生产(PREP)粉末和热等静压态合金中的微量元素Hf,Zr和Ta的存在相进行了研究。结果表明:母合金中微量元素Hf,Zr和Ta主要以一次MC型碳化物存在,呈块状、条状和蝶状分布于枝晶间;原始粉末中碳化物大致可分为两类:一类为富Ti,Ta和Nb,另一类为含有Ta,Hf和Zr,两类碳化物均含有一定量非碳化物形成元素Co和Ni及弱碳化物形成元素Cr和Mo,以块状、粒状分布于枝晶间或胞晶间。另外,热等静压态分析表明,微量元素Hf,Ta和Zr主要以晶内和晶界MC型碳化物存在,说明微量元素Hf,Zr和Ta以MC型碳化物存在并具有一定遗传性的特点。与原始粉末相比,热等静压态γ′相和碳化物中的Ta量比较少。 |
| 关 键 词： | 粉末高温合金 微量元素 母合金 PREP粉末 热等静压 |
| 收稿时间： | 3/6/2010 12:00:00 AM |
Research on Trace Elements-Containing Phases in a New Type Nickel-Based P/M Superalloy |
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| Wu Kai,Liu Guoquan,Hu Benfu,Wu Hao,Zhang Yiwen,Tao Yu and Liu Jiantao.Research on Trace Elements-Containing Phases in a New Type Nickel-Based P/M Superalloy[J].Rare Metal Materials and Engineering,2011,40(2):279-284. | |
| Authors: | Wu Kai Liu Guoquan Hu Benfu Wu Hao Zhang Yiwen Tao Yu and Liu Jiantao |
| Affiliation: | University of Science and Technology Beijing, Beijing 100083, China;University of Science and Technology Beijing, Beijing 100083, China;University of Science and Technology Beijing, Beijing 100083, China;University of Science and Technology Beijing, Beijing 100083, China;University of Science and Technology Beijing, Beijing 100083, China;Central Iron & Steel Research Institute, Beijing 100081, China;Central Iron & Steel Research Institute, Beijing 100081, China |
| Abstract: | The trace elements Hf-,Zr-and Ta-containing phases in the mother alloy,plasma rotating electrode processing(PREP) powders and hot isostatic pressed(HIPed) state of a new third generation nickel-based powder metallurgy(P/M) superalloy were studied.The results show that the trace elements Hf,Zr and Ta mainly exist as MC-type carbides which locate between the dendrites and in the shape of block,strip and butterfly.The carbides in PREP powders can be broadly divided into two groups.One is rich in Ti,Ta and Nb,a... |
| Keywords: | P/M superalloy trace elements mother alloy PREP powder HIP |
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