ECAP和时效对Mg-4Zn-1Mn-0.5Ca合金组织和性能的影响

扫码查看

原文链接

NETL
NSTL
万方数据

中文摘要：将铸态Mg-4Zn-1Mn-0.5Ca合金在 300℃热挤压成棒材,对棒材进行 180℃时效处理和 200℃等通道转角挤压(ECAP).研究了热挤压合金、ECAP 8 道次合金和时效后ECAP 8 道次合金的组织和性能.随后对试样进行室温和 150℃低温单轴拉伸.结果表明:8 道次ECAP后合金比热挤压态合金具有更细、更均匀的晶粒组织,同时提高了合金的室温屈服强度.时效后ECAP 8 道次合金的 150℃断裂伸长率比未时效ECAP8 道次合金提高 17.4%,说明时效处理对合金性能起着重要作用.

外文标题：Effects of ECAP and Aging on Microstructure and Properties of Mg-4Zn-1Mn-0.5Ca Alloy

外文摘要：The as-cast Mg-4Zn-1Mn-0.5Ca alloy was hot-extruded into rods at 300℃,and the rods were subjected to aging treatment at 180℃and equal channel angle pressing(ECAP)at 200℃.The microstructure and properties of the hot extrusion alloy,ECAP 8-pass alloy and ECAP 8-pass alloy after aging were studied.Subsequently,the samples were subjected to uniaxial tensile at room temperature and 150℃.The results show that the grain structure of the alloy after 8 passes of ECAP is finer and more uniform than that of the hot extruded alloy,and the yield strength of the alloy at room temperature is improved.The 150℃elongation at break of the aged alloy after 8-pass ECAP is 17.4%higher than that of the unaged ECAP 8-pass alloy,which indicates that the aging treatment plays an important role in the properties of the alloy.

外文关键词：

Mg-4Zn-1Mn-0.5Ca alloyaging treatmentequal channel angle pressing(ECAP)low-temperature tension

作者：

王永祥、李永峭、虞佳雯、王利飞

展开 >

作者单位：

太原理工大学材料科学与工程学院,山西太原 030024

关键词：

Mg-4Zn-1Mn-0.5Ca合金时效等通道转角挤压低温拉伸

基金：

国家自然科学基金中央引导地方科技发展专项山西省重点研发计划山西省专利实施推广专项

项目编号：

51704209YDZJSX2021A010201803D42108620200718

出版年：

2024

DOI：

10.14158/j.cnki.1001-3814.20220533

热加工工艺

中国船舶重工集团公司热加工工艺研究所中国造船工程学会船舶材料学术委员会

热加工工艺

CSTPCD北大核心

影响因子：0.55

ISSN：1001-3814

年,卷(期)：2024.53(7)

参考文献量7