Characteristics of aluminum 6061-T6 deformed to large plastic strains by machining
Characteristics of aluminum 6061-T6 deformed to large plastic strains by machining
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DOI：
10.1016/j.msea.2005.08.137
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发表时间：
2005-11
期刊：
影响因子：
6.4
通讯作者：
M.Ravi Shankar;S. Chandrasekar;W.Dale Compton;Alexander H. King
中科院分区：
文献类型：
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作者：
M.Ravi Shankar;S. Chandrasekar;W.Dale Compton;Alexander H. King
通过分析平面应变切削产生的切屑，研究了可沉淀处理铝合金（6061-T6）在大塑性应变下的变形特性。通过改变刀具的几何形状，在单道加工中在切屑中施加不同水平的应变。切屑的显微组织被发现是由相对等轴晶粒的平均尺寸在70-100 nm的范围内。跟踪了变形区微观组织的演变。芯片的显微硬度值被认为是稍大于报告的Al 6061-T6变形等通道角挤压（ECAP）。
A study has been made of characteristics of precipitation treatable aluminum alloys (6061-T6) deformed to large plastic strains, by analyzing chips created by plane strain (2-D) machining. By varying the geometry of the tool, different levels of strain were imposed in the chip in a single pass of machining. The microstructure of the chips was found to be composed of relatively equi-axed grains with mean size in the range of 70–100 nm. The evolution of the microstructure across the deformation zone has been tracked. The chip micro-hardness values were found to be somewhat greater than that reported for Al 6061-T6 deformed by equal channel angular pressing (ECAP).