铝合金6061与6082的区别

铝合金6061与6082的区别
The introduction of alloy 61S (6061) in 1935 filled the need for medium-strength, heat-treatable products wit
h good corrosion resistance that could be welded or anodized. Alloy (62S) 6062, a low-chromium version of
similar magnesium and silicon, was introduced in 1947 to provide finer grain size in some cold-worked pro
ducts. Unlike the harder aluminum-copper alloys, 61S and 62S could be easily fabricated by extrusion, rollin
g, or forging. These alloys抦echanical properties were adequate (mid 40-45 ksi range) even with a less-than-optimum quench, enabling them to replace mild steel in many markets. The base composition was a terna
ry aluminum-magnesium-silicon alloy with small amounts of copper for strengthening and chromium for recry
stallization control.
Alloy 6061 evolved after its initial development until, in 1963, the alloy limits were broadened to effect its co
mbination with alloy 6062. In Europe, alloy 6082 is used more commonly than alloy 6061. Mechanical prope
rties are similar, but, rather than chromium, manganese is used for recrystallization control.
上面是对2种铝材料发展的简单介绍。

6082属于新合金，成份与6061类似，但由更好的性能，在欧洲使用非常普及，
因为抗拉强度比6061高出10-18%左右，同时因为铜成份降低，有更好地耐腐蚀性，但不损失任何挤出性能和阳极氧化反应。

可以看到，6061中铜是作为增强相，铬用于再结晶控制。

而6082中铜成份降低，锰被用于了再结晶控制。