李宇力,王文先,陈洪胜,赵骏超,王保东

• 1:太原理工大学材料科学与工程学院
• 2:山西中通高技术有限责任公司

摘要(Abstract)：

采用粉末冶金法制备30%B4C/6061Al复合材料坯料,经过二次加工(挤压+轧制)后得到复合材料板材,对板材进行T6(530℃保温2 h后中温水淬,175℃时效6.5 h)热处理。采用光学显微镜(OM)和透射电子显微镜(TEM)对热处理前后复合材料的微观组织形貌进行观察,运用显微硬度仪和万能拉伸试验机对复合材料的热处理前后的力学性能进行测试。结果表明:退火态时观察到再结晶晶粒和少量位错;时效态时观察到大量的位错和析出相。热处理状态对复合材料伸长率无明显的影响,但对材料的硬度和抗拉强度影响较大,B4C/6061Al复合材料经T6热处理后硬度和抗拉强度分别提高了15%和12%。

关键词(KeyWords)： T6热处理;B4C/6061Al复合材料;力学性能;TEM形貌

Abstract:

Keywords:

基金项目(Foundation): 山西省科技攻关项目基金(20130321024)

作者(Author): 李宇力,王文先,陈洪胜,赵骏超,王保东

DOI: 10.13289/j.issn.1009-6264.2016.04.005

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