激光熔覆Ta-W合金组织及高温气动烧蚀性能

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	激光熔覆Ta-W合金组织及高温气动烧蚀性能
	武扬; 虞钢; 何秀丽; 宁伟健; Wu, Y
刊名	稀有金属材料与工程=Rare Metal Materials and Engineering
	2012-07-15
通讯作者邮箱	wuyang0203@163.com;gyu@imech.ac.cn
卷号	41 期号:7 页码:1211-1215
ISSN号	1002-185X
其他题名	Microstructure and high temperature aerodynamic ablation property of Ta-W alloy deposited by coaxial laser cladding
通讯作者	Wu, Y ; Chinese Acad Sci, Key Lab Mech Adv Mfg, Inst Mech, Beijing 100190, Peoples R China.
产权排序	中国科学院力学研究所
中文摘要	以纯W粉末为熔覆材料,纯Ta为基底,采用同轴送粉激光熔覆技术在Ta板侧面制备了Ta-W合金涂层。利用扫描电镜(SEM)、能谱(EDS)及显微硬度计对熔覆层的微观组织和显微硬度进行了分析,在直联式自由射流风洞试验台上对涂层的抗高温高速气流烧蚀性能进行了测试。结果表明,熔覆层与基底冶金结合,涂层内部为致密的树枝状Ta-W合金固溶体,大致均匀地分布于Ta中。Ta-W合金涂层平均HV硬度8GPa,为基材的5倍,同时抗烧蚀性能得到了显著提高。
英文摘要	A Ta-W alloy coating was deposited on pure Ta plate by coaxial laser cladding, using tungsten powder as cladding material. The microstructure of the coating was analyzed by scanning electron microscopy (SEM) and energy disperse spectroscopy (EDS). The microhardness was examined by hardness tester. The high temperature hypersonic flow ablation property was tested in the wind tunnel system. It is found that the coating is metallurgically bonded with the substrate. The clad layer has a microstructure consisting of dendrite Ta-W solid solution uniformly dispersed in the Ta matrix. The average microhardness of the clad layer is approximately 8 GPa and it is 5 times greater than that of the Ta substrate. The ablative property is also obviously improved.
学科主题	制造工艺力学
类目[WOS]	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	MECHANICAL-PROPERTIES ; OXIDATION ; TANTALUM ; TUNGSTEN ; COATINGS
收录类别	SCI ; EI ; CSCD
资助信息	国家自然科学基金(10832011)
原文出处	http://epub.cnki.net/kns/detail/detail.aspx?FileName=COSE201207020&DbName=CJFQ2012
语种	中文
CSCD记录号	CSCD:4603557
WOS记录号	WOS:000308053900018
公开日期	2013-01-18
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/46623]
专题	力学研究所_先进制造工艺力学重点实验室
通讯作者	Wu, Y
推荐引用方式 GB/T 7714	武扬,虞钢,何秀丽,等. 激光熔覆Ta-W合金组织及高温气动烧蚀性能[J]. 稀有金属材料与工程=Rare Metal Materials and Engineering,2012,41(7):1211-1215.
APA	武扬,虞钢,何秀丽,宁伟健,&Wu, Y.(2012).激光熔覆Ta-W合金组织及高温气动烧蚀性能.稀有金属材料与工程=Rare Metal Materials and Engineering,41(7),1211-1215.
MLA	武扬,et al."激光熔覆Ta-W合金组织及高温气动烧蚀性能".稀有金属材料与工程=Rare Metal Materials and Engineering 41.7(2012):1211-1215.