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纯铜表面纳米氧化铝弥散强化覆层的制备研究
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Indexed by:期刊论文

Date of Publication:2012-09-15

Journal:稀有金属材料与工程

Included Journals:PKU、ISTIC

Issue:S2

Page Number:32-34

ISSN No.:1002-185X

Key Words:粉末烧结;水下爆炸压实;弥散强化覆层;显微组织;断口形貌

Abstract:提出了一种在铜基体表面制备弥散强化覆层的新工艺。利用机械合金化法制备纳米Al2O3颗粒与铜粉的混合粉末,然后将混合粉末预压实并通氢烧结到铜基体表面,最后用水下冲击波爆炸压实使得弥散强化覆层密实并进一步与基体结合。微观组织检查显示,弥散强化覆层充分压实,形成致密体,纳米Al2O3颗粒均匀分散在覆层中,覆层与基体结合紧密。对断口形貌分析显示,弥散强化覆层在晶界处断裂,晶界断裂处产生局部的韧窝。

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Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Gender:Male

Alma Mater:大连理工大学

Degree:Doctoral Degree

School/Department:力学与航空航天学院

Discipline:Engineering Mechanics. Applied and Experimental Mechanics. Biomechanics and Nanomechanics

Business Address:大连理工大学 A1区26号 力学系203室

Contact Information:yanhh@dlut.edu.cn 0411-84708397

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