Direct Chill Casting and Extrusion of AA6111 Aluminum Alloy Formulated from Taint Tabor Scrap.
Direct Chill Casting and Extrusion of AA6111 Aluminum Alloy Formulated from Taint Tabor Scrap.
复制标题
由 Taint Tabor 废料配制而成的 AA6111 铝合金的直接冷硬铸造和挤压。
DOI：
10.3390/ma13245740
复制
发表时间：
2020-12-16
期刊：
影响因子：
--
通讯作者：
Fan Z
中科院分区：
文献类型：
--
作者：
Al-Helal K;Patel JB;Scamans GM;Fan Z
AA 6111铝合金汽车车身板是由100% Taint塔博尔废铝配制而成。采用带和不带高剪切熔体调节（HSMC）的直接激冷铸造生产AA 6111合金坯料。均质化和非均质化的坯料都被挤出成片材。与直接激冷（DC）铸造和直接激冷晶粒细化（DC-GR）样品相比，熔体调节直接激冷（MC-DC）样品的光学显微照片显示出细化的等轴晶粒。光学金相显示从均质化的标准AA 6111坯料挤出的DC、DC-GR和MC-DC板材的广泛的周边粗晶粒（PCG），而从改性的AA 6111坯料（具有再结晶抑制剂）挤出的板材显示薄的PCG带。再结晶抑制剂Mn、Zr和Cr的共同添加以及消除坯料均匀化步骤对挤压过程之后的AA 6111合金的微观结构具有有利的影响，其中纤维状晶粒结构在板材的整个截面上保持。从非均质坯料挤压出的铸态板材的力学性能与从均质坯料挤压出的铸态板材的力学性能相似。在挤压之前消除均匀化热处理步骤在降低加工成本方面具有重要的影响。
AA6111 aluminum automotive body-sheet alloy has been formulated from 100% Taint Tabor scrap aluminum. Direct chill casting with and without high shear melt conditioning (HSMC) was used to produce the AA6111 alloy billets. Both homogenized and non-homogenized billets were extruded into sheets. The optical micrographs of the melt conditioned direct chill (MC-DC) samples showed refined equiaxed grains in comparison to direct chill (DC) cast and direct chill grain refined (DC-GR) samples. Optical metallography showed extensive peripheral coarse grain (PCG) for the DC, DC-GR and MC-DC planks extruded from the homogenized standard AA6111 billets while planks extruded from modified AA6111 billets (with recrystallization inhibitors) showed thin PCG band. The co-addition of recrystallization inhibitors Mn, Zr, and Cr with elimination of the billet homogenization step had a favorable impact on the microstructure of the AA6111 alloy following the extrusion process where a fibrous grain structure was retained across the whole section of the planks. The mechanical properties of as-cast planks extruded from non-homogenized billets were similar to those extruded from homogenized billets. Eliminating the homogenization heat treatment step prior to extrusion has important ramifications in terms of processing cost reduction.
登录
查看更多内容
影响因子：
9.4
作者：
Li, H-T.;Wang, Y.;Fan, Z.
通讯作者：
Fan, Z.
DOI：
10.1007/s11661-009-9965-3
发表时间：
2009-11-01
影响因子：
2.8
作者：
Lin, H. C.;Kuo, T. Y.;Lin, C. C.
通讯作者：
Lin, C. C.
6111铝合金轧制变形的织构、显微组织和力学性能
DOI：
10.1590/1980-5373-mr-2017-0549
发表时间：
2017-07-01
期刊：
Materials Research
影响因子：
--
作者：
Zhang, Lixin;Wang, Yihan;Song, Min
通讯作者：
Song, Min
影响因子：
2.6
作者：
Al-Helal, Kawther;Chang, Isaac;Fan, Zhongyun
通讯作者：
Fan, Zhongyun
影响因子：
6.2
作者：
Ding, Lipeng;Jia, Zhihong;Liu, Qing
通讯作者：
Liu, Qing