压铸AZ91镁合金碳纳米管复合材料性能分析.docx

文档介绍：摘要
摘要
本文主要采用钟罩浸块法制备AZ91镁合金碳纳米管复合材料，采用压铸的 方法成型。主要讨论了碳纳米管含量以及预制块球磨时间对AZ91镁合金碳纳米 管复合材料的机械力学性能、抗腐蚀性能、抗磨损性能的影响。
SEM)；It has
been researched tllat me coment of carbon mmotubes arld precast block血lliI培tiIne e虢Ct on co仃0sion resiStanCe of AZ9 1 ma驴esium a110ys uSiI培Ⅱ地、№ight loss，PH
Value妇ge，electrocheIIlical polarization curve m劬od；n h嬲also researChed mat
content of m、Ⅳcnts e金．ect on abraSion resistance prop硎es of AZ9 1 magnesilun alIoys，
me嬲uring sUlrf如e weight loss，ob∞rviIlg su矗犯e we盯mo印hology，wear fonn and nle m唧h0109y ofll011ing。
1k舱sults of仕屺s砌y show廿1at graills of AZ91 ma口es岫n b勰ed m瞩吼Its
com]posites啪be refmed，m s溉s ofme die c咖’s咖骶加ut 10-40 u m；
Adding mwcnts c觚iIllproVe廿le te】啮ile strengm of AZ91 magnesium alloys，when 血e ad血g am0嘣ofmwcnts is below 1．5吼‰舭te商le s仃engm ofdie cast Az91
is aboutl94MPa，mcreaSed by 26．8％t11趾tllat of ma臼奴。But也e te邶ile g吮ngm
fclls down wim缸le incre懿e of n地addiIlg锄omt of mwcnts dl硷t0 t11e ag口egation ofmwCms in a metal meh While add她锄0吼t ofm删is greater岫1．0、砒％，弛d
也e elongadon reached ma)出1mm at tlle adding糊unt。The microhardIless雅d
tenSiIe s心％gttles n．end鹤the saII地。Mwwcnts milliIlg妇is Ionger，me dispersion
II
ABSTRACT
is咖er；When tlle缸e reaChes 1觚，mwcnts c趾W印evellly ar01md砧p0、Ⅳd盯； Addillg mwcnts c缸obViously iIIlpr0Ve t11e corrosion resiStance of AZ9 1 magnesium alloys．111eir average corrOsion髓te is the beSt，reacl曲g O．2756／(IIl2·s)wllile也e
艇眦nt addh培锄ouIlt is 3．O叭％．1k pH Val∞90 up瑚lpidly at廿坞stan， msquenny 也c PH固丽Ilally cllaIlged up slowly dⅢ啦 co玎osion； Us吨 ele咖che而cal corrosion expe面枨mtal觚alysis resmts can cleady demoIls『t船：te t：hat
addiI培mw伽临can make me balance p1吨eI】．tial sbj毹l玛t0 right锄d t：he corrosion
cu饿斌dess毋down∞弱t0 inlprove the con．0sion托sistaIlCe propre饥display证g 廿le coI塔istent of tlle weight 10ss觚d PH dlaIlge；Ill a certain mge，、砘tll me i11cre嬲e of me addiI唱锄omlt of mwcn_ts，AZ91 magnesium alloys缸ltiwear a：bilit)，increaSes，
Wllich shows廿lat mwcnts in也e m撕x c缸more e日’eCtively resist we