热等静压对ZL111-T6铝合金叶轮组织和性能的影响
Effects of Hot Isostatic Pressing on Microstructure and Properties of ZL111-T6 Aluminium Alloy Wheels
摘 要
通过对比试验研究了热等静压处理对ZL111-T6铝合金增压器叶轮显微组织、拉伸性能及疲劳性能的影响。结果表明: 热等静压处理可有效消除ZL111-T6铝合金叶轮内部的铸造疏松和缩孔缺陷；热等静压使ZL111-T6铝合金的抗拉强度、屈服强度和伸长率都略有提高，同时使各项性能数据的离散度大幅度减小,提高了铸件产品性能的稳定性；相比未经热等静压处理的ZL111-T6铝合金叶轮，热等静压处理使其疲劳寿命提高了一倍以上。
ZL111-T6铸造铝合金
显微组织
拉伸性能
疲劳性能
hot isostatic pressing process
ZL111-T6 cast aluminium alloy
microstructure
tensile property
fatigue property
Abstract
The effects of hot isostatic pressing (HIP) process on microstructure and tensile and fatigue properties of ZL111-T6 cast aluminum alloy compressor wheels were studied by comparison testing. The results show that HIP process could eliminate the shrinkage porosity defects obviously in the microstructure of ZL111-T6 cast aluminum alloy wheels. After HIP process, the tensile strength, yield strength and percentage elongation of ZL111-T6 cast aluminum alloy wheels were improved slightly, and the data dispersion of them was reduced greatly which would enhance the quality stability of the cast products. The fatigue life of ZL111-T6 cast aluminum alloy wheels with HIP process was enhanced over one time compared with those without HIP process.
中图分类号 TG146.2
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收稿日期 2011/2/13
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备注龚怡(1981-),女,助理工程师,工程硕士。
引用该论文: GONG Yi,ZHU Shou-xing,ZHANG Shao-zong. Effects of Hot Isostatic Pressing on Microstructure and Properties of ZL111-T6 Aluminium Alloy Wheels[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2011, 47(6): 333～336
龚怡,朱守星,张少宗. 热等静压对ZL111-T6铝合金叶轮组织和性能的影响[J]. 理化检验－物理分册, 2011, 47(6): 333～336
被引情况:
【1】张 涛,陈志军,王文豪,沈新伟, "某超临界电站锅炉送风机叶片的断裂原因分析",理化检验－物理分册 52, 479-483(2016)
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参考文献
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【2】秦添艳. 热等静压工艺[J]. 上海钢研, 1999(5): 50-51．
【3】王和堂, 田桂琴, 高和才,等. 采用热等静压技术提高铸件质量和性能[J]. 纯碱工业, 1995(2): 43-44.
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