One aluminum products, T6 hardness is not up to the requirements of heat treatment, the manufacturers say that is the low magnesium content, not between 0.8~1.2 (the actual measurement is 0.70~0.81 content), there is relationship between content and heat treatment on the quality of magnesium?
Ha ha, 6061 belong to Al-Mg-Si wrought aluminum alloy. Hardness is not up to the mark. It may be that magnesium and silicon (of course, other trace elements) do not meet the requirements at the same time, or they may be caused by improper heat treatment process. I don't know what the hardness of your 6061-T6 requires If you are interested, you can continue the discussion.
If a certain amount of manganese and chromium, can neutralize the bad effect of iron; sometimes add a small amount of copper or zinc, to improve the strength of the alloy, and the corrosion resistance decreased significantly; there is a small amount of copper conductive materials, titanium and iron to offset the adverse effects on the conductivity of the zirconium; or titanium can refine the grain and control of recrystallization; in order to improve the cutting performance, adding lead and bismuth. In Mg2Si solution in aluminum, the alloy has artificial aging hardening function. The main alloy elements in 6061 aluminum alloy are magnesium and silicon, which have moderate strength, good corrosion resistance, weldability and good oxidation effect.
It doesn't matter.6061 belongs to Al-Mg-Si wrought aluminum alloy. Hardness is not up to the mark. It may be that magnesium and silicon (of course, other trace elements) do not meet the requirements at the same time, or they may be caused by improper heat treatment process.The hardness after welding may be low, but the heat treatment is more trouble, after all, there is no other soft, there is a problem, heat treatment after deformation, processed into finished products and how to solve the problem of deformation, the wall thickness is too thin.The difference between the 6061 aluminum state T6 and T651 is in general, the internal stress of T6 will be relatively large, machining deformation, the most suitable processing condition should be T651, he is drawn on the basis of T6, eliminate the internal stress and the main alloy element 606 Aluminum Alloy is magnesium and silicon, and the formation of Mg2Si phase.
