預(yù)變形對(duì)應(yīng)變誘導(dǎo)熔化激活法制備Al-Zn-Mg-Cu合金顯微組織與力學(xué)性能的影響(英文)
本文選題:鋁合金 + 鑄造; 參考:《Transactions of Nonferrous Metals Society of China》2016年09期
【摘要】:研究Al-8B晶粒細(xì)化劑對(duì)應(yīng)變誘導(dǎo)熔化激活法制備的Al-12Zn-3Mg-2.5Cu合金顯微組織與力學(xué)性能的影響。并在300°C對(duì)合金進(jìn)行預(yù)變形量為60%的熱加工。預(yù)變形后,將合金加熱至介于固相線和液相線的某一溫度(500,550和590°C),并保溫不同時(shí)間(10,20和40 min)。應(yīng)變誘導(dǎo)熔化激活法可得到球狀α(Al)晶粒。采用光學(xué)顯微鏡和掃描電子顯微鏡觀察細(xì)化和未細(xì)化合金的顯微組織。結(jié)果表明,應(yīng)變誘導(dǎo)熔化激活制備過(guò)程中在550°C下保溫10 min,可以得到滿意的顯微組織。經(jīng)T6熱處理后,采用3.75%Al-8B細(xì)化和應(yīng)變誘導(dǎo)熔化激活法制備的合金的平均拉伸強(qiáng)度分別從278 MPa增加至585 MPa,252MPa增加至560 MPa。SIMA合金的抗拉強(qiáng)度比B細(xì)化合金的抗拉強(qiáng)度低。
[Abstract]:The effect of Al-8B grain refiner on the microstructure and mechanical properties of Al-12Zn-3Mg-2.5Cu alloy prepared by strain induced melting activation method was studied. The alloy was predeformed at 300 擄C by 60% hot working. After pre-deformation, the alloy was heated to a temperature of 500550 and 590 擄C ~ (-1) between the solid and liquid lines, and the alloy was heated for 10 ~ 20 and 40 min ~ (-1) at different time. Spheroidal 偽 -Al grains can be obtained by strain induced melting activation method. The microstructure of the alloy was observed by optical microscope and scanning electron microscope. The results show that satisfactory microstructure can be obtained by holding at 550 擄C for 10 min during the preparation process of strain induced melting activation. After T6 heat treatment, the average tensile strength of the alloy prepared by 3.75%Al-8B refinement and strain induced melting activation method was increased from 278 MPa to 585 MPA, respectively. The tensile strength of the alloy increased to 560 MPa.SIMA was lower than that of the B refined alloy.
【作者單位】: School
【分類號(hào)】:TG146.21;TG292
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 劉鑫剛;聶紹珉;任運(yùn)來(lái);;預(yù)變形高溫?cái)U(kuò)散對(duì)合金元素分布和組織的影響[J];塑性工程學(xué)報(bào);2007年06期
2 金蘭;李維娟;張永衡;;預(yù)變形量對(duì)超低碳鋼烘烤硬化性能的影響[J];機(jī)械工程材料;2012年12期
3 張學(xué)義;鄒廣平;夏興有;岳寶成;;低碳鋼扭轉(zhuǎn)預(yù)變形沖擊性能與微觀機(jī)理[J];哈爾濱工業(yè)大學(xué)學(xué)報(bào);2011年S1期
4 江軻;張作全;;預(yù)變形技術(shù)在覆膜鐵罐彩印中的應(yīng)用[J];包裝學(xué)報(bào);2012年04期
5 ;預(yù)變形對(duì)鋯合金拉伸性能的影響[J];鈦工業(yè)進(jìn)展;2014年02期
6 李慧中,張新明,陳明安,周卓平,龔敏如;預(yù)變形對(duì)2519鋁合金組織與力學(xué)性能的影響[J];中國(guó)有色金屬學(xué)報(bào);2004年12期
7 李慧中;李洲;梁霄鵬;郭菲菲;孫風(fēng)蔚;;預(yù)變形對(duì)Al-Cu-Mn-Mg-Ag合金的組織與力學(xué)性能的影響[J];航空材料學(xué)報(bào);2009年02期
8 張新明;劉玲;賈寓真;;拉伸與軋制預(yù)變形對(duì)2519A鋁合金組織與力學(xué)性能的影響[J];中國(guó)有色金屬學(xué)報(bào);2010年06期
9 王芝秀;李海;魏修宇;鄭子樵;;預(yù)變形對(duì)2E12鋁合金拉伸性能和疲勞壽命的影響[J];稀有金屬材料與工程;2010年S1期
10 笛普林,羅蘭·維雷特,王平;鋼絲繩預(yù)變形生產(chǎn)工藝一百年[J];金屬制品;1988年S1期
相關(guān)會(huì)議論文 前5條
1 胡琦;張青川;曹鵬濤;符師樺;;預(yù)變形對(duì)5052鋁合金中Portevin-Le Chatelier效應(yīng)的影響[A];第十二屆全國(guó)實(shí)驗(yàn)力學(xué)學(xué)術(shù)會(huì)議論文摘要集[C];2009年
2 王s,
本文編號(hào):1833639
本文鏈接:http://www.sikaile.net/shekelunwen/minzhuminquanlunwen/1833639.html