固溶制度對1933鋁合金自由鍛件組織和力學(xué)性能的影響
發(fā)布人：上海艾荔艾金屬材料有限公司www.jshcn.cn
更新時(shí)間：2015-12-17
采用光學(xué)顯微鏡(OM)、掃描電鏡(SEM)、透射電鏡(TEM)、X射線衍射和室溫拉伸研究固溶制度對1933鋁合金自由鍛件組織和力學(xué)性能的影響。
固溶制度對1933鋁合金自由鍛件組織和力學(xué)性能的影響Effects of solution treatment on microstructure and mechanical properties of 1933 aluminum alloy forgings采用光學(xué)顯微鏡(OM)、掃描電鏡(SEM)、透射電鏡(TEM)、X射線衍射和室溫拉伸研究固溶制度對1933鋁合金自由鍛件組織和力學(xué)性能的影響。結(jié)果表明：由于Al3Zr粒子對晶界的釘扎作用，在470 ℃以下固溶時(shí)，合金的再結(jié)晶程度很低(＜15%)；隨著固溶溫度升高，再結(jié)晶程度逐漸上升；510 ℃固溶時(shí)，合金的再結(jié)晶程度顯著增大(約為48%)；1933鋁合金鍛件中第二相主要有Al7Cu2Fe相和η相；合金經(jīng)470 ℃固溶60 min后，η相溶解比較充分，此后隨溫度升高或時(shí)間延長第二相變化不大；合金的最佳固溶制度為470 ℃、60 min，在此條件下合金具有最好的力學(xué)性能。
The effects of solution treatment on microstructures and properties of the aged 1933 aluminum alloy forgings were investigate by optical microscopy (OM), scanning electron microscopy (SEM), transmission electrical microscopy (TEM), X-ray diffractometry and tensile testing. The results show that the recrystallization fraction is very low (＜15%) when the temperature is below 470 ℃ due to the pinning effect on grain boundaries of Al3Zr dispersoids. When the forgings are treated at 510 ℃, the recrystallization fraction increases significantly to about 48%. The main phases in this alloy are Al7Cu2Fe and η phases. The second phases don’t change obviously with increasing temperature and time because the η phase is dissolved almost completely after solution treatment at 470 ℃ for 60 min. The best solution treatment for 1933 alloy forgings is 470 ℃, 60 min, and the alloys under these conditions have the best tensile properties.
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AILIAI has been a reliable partner and supplier of sophisticated and high-quality semi-finished products maed of alloys. In dialogue with our customers, we optimise our products to meet the specific application requirements. AILIAI develops the best alloy material solutions for current and future challenges.
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For more information on the alloys and services that we supply,?call us?at 086-021-67660801 or email us at kefu@ailiaigroup.com. You can also get in touch on social media, we are constantly active on?Weibo?and?Weixin.