Eutectic high entropy alloy syntactic foam

材料科学 共晶体系 复合泡沫 微观结构 合金 金属泡沫 复合材料 多孔性
作者
Jin Meng,Yucong Qiao,Tian-Wei Liu,Yuan-Yuan Tan,Fuhua Cao,Yan Chen,Hai-Ying Wang,Lan-Hong Dai
出处
期刊:Journal of Materials Science & Technology [Elsevier BV]
卷期号:149: 177-189 被引量:1
标识
DOI:10.1016/j.jmst.2022.12.009
摘要

High-strength metallic foams have a wide range of applications in engineering as lightweight structural and energy-absorbing materials. However, it is challenging to obtain metallic foam with both good energy absorption performance and high strength. Here, we developed a novel metal matrix syntactic foam fabricated with AlCoCrFeNi2.1 eutectic high entropy alloy and alumina cenospheres that exhibits a remarkable combination of high strength and energy absorption performance under both quasi-static and dynamic compression. The porous structure of syntactic foam fully exploits the properties of the AlCoCrFeNi2.1 alloy matrix with a unique FCC/B2 dual-phase eutectic microstructure and thus yields exceptional performance. We discovered that this dual-phase microstructure not only provides high strength but also allows the pores to collapse in a progressive and diffusive way, which enables the formation of a high and smooth energy absorption platform. It is found that the heterogeneity between the two phases in the matrix can provide back stress strengthening, and it also induces multiple micro shear bands and microcracks as additional energy dissipation modes as the deformation proceeds. This unique mechanism ensures the strength of microstructures and makes them fracture promptly, which causes the balance of strengthening and softening on the macro scale. This work opens the avenue for developing advanced high-strength lightweight structural and energy-absorbing materials.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
老实用户完成签到 ,获得积分10
1秒前
Sakura完成签到 ,获得积分10
1秒前
hui发布了新的文献求助10
1秒前
满意的迎南完成签到 ,获得积分10
2秒前
苗条小霸王完成签到,获得积分10
2秒前
康康发布了新的文献求助10
2秒前
3秒前
粗犷的世平完成签到,获得积分10
4秒前
小坨坨发布了新的文献求助10
4秒前
完美世界应助12采纳,获得10
5秒前
个性的紫菜应助小黄豆采纳,获得70
5秒前
雨寒发布了新的文献求助50
6秒前
威武的水之完成签到,获得积分10
6秒前
沉潜完成签到,获得积分10
7秒前
demo完成签到,获得积分10
7秒前
一包辣条发布了新的文献求助10
8秒前
8秒前
8秒前
9秒前
9秒前
9秒前
10秒前
10秒前
pomelost完成签到,获得积分10
10秒前
炙热ding完成签到,获得积分10
12秒前
12秒前
Hello应助康康采纳,获得10
13秒前
13秒前
14秒前
tiantu发布了新的文献求助10
14秒前
14秒前
SJW123完成签到 ,获得积分10
14秒前
eternity136发布了新的文献求助10
14秒前
Vivian发布了新的文献求助10
14秒前
阿杰完成签到,获得积分10
15秒前
15秒前
aqiuyuehe发布了新的文献求助10
15秒前
16秒前
16秒前
高分求助中
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
计划经济时代的工厂管理与工人状况(1949-1966)——以郑州市国营工厂为例 500
INQUIRY-BASED PEDAGOGY TO SUPPORT STEM LEARNING AND 21ST CENTURY SKILLS: PREPARING NEW TEACHERS TO IMPLEMENT PROJECT AND PROBLEM-BASED LEARNING 500
The Pedagogical Leadership in the Early Years (PLEY) Quality Rating Scale 410
Stackable Smart Footwear Rack Using Infrared Sensor 300
Modern Britain, 1750 to the Present (第2版) 300
Writing to the Rhythm of Labor Cultural Politics of the Chinese Revolution, 1942–1976 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 物理化学 基因 催化作用 遗传学 冶金 电极 光电子学
热门帖子
关注 科研通微信公众号,转发送积分 4603484
求助须知:如何正确求助?哪些是违规求助? 4012177
关于积分的说明 12422449
捐赠科研通 3692673
什么是DOI,文献DOI怎么找? 2035749
邀请新用户注册赠送积分活动 1068916
科研通“疑难数据库(出版商)”最低求助积分说明 953403