易玩棋牌

各种元素在铝合金中的作用

来源:新乡市天马工业炉有限公司 发布时间:2019-09-21 10:29 浏览次数:次

合金元素影响

 

铜元素

铝铜合金富铝部分548时,铜在铝中的***大溶解度为 5.65%,温度降到302时,铜的溶解度为0.45%。铜是重要的合金元素,有***的固溶强化效果,此外时效析出的CuAl2有着明显的时效强化效果。铝合金中铜含量通常在2.5% ~ 5%,铜含量在4%~6.8%时强化效果***好,所以大部分硬铝合金的含铜量处于这范围。

易玩棋牌 LVTONGHEJINZHONGKEYIHANYOUJIAOSHAODEGUI、MEI、MENG、GE、XIN、TIEDENGYUANSU。

 

硅元素

Al—SiHEJINXIFULVBUFENZAIGONGJINGWENDU577 SHI,GUIZAI GURONGTIZHONGDE***DARONGJIEDUWEI1.65%。JINGUANRONGJIEDUSUIWENDUJIANGDIERJIANSHAO,JIEZHEILEIHEJINYIBANSHIBUNENGRECHULIQIANGHUADE。LVGUIHEJINJUYOU***DEZHUZAOXINGNENGHEKANGSHIXING。

 

RUOMEIHEGUITONGSHIJIARULVZHONGXINGCHENGLVMEIGUIXIHEJIN,QIANGHUAXIANGWEIMgSi。MEIHEGUIDEZHILIANGBIWEI1.73:1。SHEJIAl-Mg-SiXIHEJINCHENGFENSHI,JITISHANGANCIBILIPEIZHIMEIHEGUIDEHANLIANG。YOUDEAl-Mg-SiHEJIN,WEILETIGAOQIANGDU,JIARUSHILIANGDETONG,TONGSHIJIARUSHILIANGDEGEYIDIXIAOTONGDUIKANGSHIXINGDEBULIYINGXIANG。

 

Al-Mg2Si合金系合金平衡相图富铝部分Mg2Si在铝中的***大溶解度为1.85%,且随温度的降低而减速小。变形铝合金中,硅单独加入铝中只限于焊接材料,硅加入铝中亦有***的强化作用。

 

镁元素

Al-MgHEJINXIPINGHENGXIANGTUFULVBUFENJINGUANRONGJIEDUQUXIANBIAOMING,MEIZAILVZHONGDERONGJIEDUSUIWENDUXIAJIANGERDADADIBIANXIAO,DANSHIZAIDABUFENGONGYEYONGBIANXINGLVHEJINZHONG,MEIDEHANLIANGJUNXIAOYU6%,ERGUIHANLIANGYEDI,ZHEILEIHEJINSHIBUNENGRECHULIQIANGHUADE,DANSHIKEHANXINGLIANGHAO,KANGSHIXINGYEHAO,BINGYOUZHONGDENGQIANGDU。

 

镁对铝的强化是明显的,每增加1%镁,抗拉强度大约升高瞻远34MPa。如果加入1%以下的锰,可能补充强化作用。因此加锰后可降低镁含量,同时可降低热裂倾向,另外锰还可以使Mg5Al8化合物均匀沉淀,改善抗蚀性和焊接性能。

 

锰元素

Al-MnHEJINXIPINGPINGHENGXIANGTUBUFENZAIGONGJINGWENDU658SHI,MENGZAI GURONGTIZHONGDE***DARONGJIEDUWEI1.82%。HEJINQIANGDUSUIRONGJIEDUZENGJIABUDUANZENGJIA,MENGHANLIANGWEI0.8%SHI,YANSHENLVDA***DAZHI。Al-MnHEJINSHIFEISHIXIAOYINGHUAHEJIN,JIBUKERECHULIQIANGHUA。

 

易玩棋牌 MENGNENGZUZHILVHEJINDEZAIJIEJINGGUOCHENG,TIGAOZAIJIEJINGWENDU,BINGNENGXIANZHUXIHUAZAIJIEJINGJINGLI。ZAIJIEJINGJINGLIDEXIHUAZHUYAOSHITONGGUOMnAl6HUAHEWUMISANZHIDIANDUIZAIJIEJINGJINGLIZHANGDAQIZUAIZUOYONG。MnAl6DELINGYIZUOYONGSHINENGRONGJIEZAZHITIE,XINGCHENG(Fe、Mn)Al6,JIANXIAOTIEDEYOUHAIYINGXIANG。

 

易玩棋牌 MENGSHILVHEJINDEZHONGYAOYUANSU,KEYIDANDUJIARUXINGCHENGAl-MnERYUANHEJIN,GENGDUODESHIHEQITAHEJINYUANSUYITONGJIARU,YINCIDADUOLVHEJINZHONGJUNHANYOUMENG。

 

锌元素

Al-ZnHEJINXIPINGHENGXIANGTUFULVBUFEN275SHIXINZAILVZHONGDERONGJIEDUWEI31.6%,ERZAI125SHIQIRONGJIEDUZEXIAJIANGDAO5.6%。

 

易玩棋牌 XINDANDUJIARULVZHONG,ZAIBIANXINGTIAOJIANXIADUILVHEJINQIANGDUDETIGAOSHIFENYOUXIAN,TONGSHICUNZAIYINGLIFUSHIKAILIE、QINGXIANG,YINERXIANZHILETADEYINGYONG。

 

ZAILVZHONGTONGSHIJIARUXINHEMEI,XINGCHENGQIANGHUAXIANGMg/Zn2,DUIHEJINCHANSHENGMINGXIANDEQIANGHUAZUOYONG。Mg/Zn2HANLIANGCONG0.5%TIGAODAO12%SHI,KEMINGXIANZENGJIAKANGLAQIANGDUHEQUFUQIANGDU。MEIDEHANLIANGCHAOGUOXINGCHENGMg/Zn2XIANGSUOXUCHAOYINGLVHEJINZHONG,XINHEMEIDEBILIKONGZHIZAI2.7ZUOYOUSHI,YINGLIFUSHIKAILIEKANGLI***DA。

 

易玩棋牌 RUZAIAl-Zn-MgJICHUSHANGJIARUTONGYUANSU,XINGCHENGAl-Zn-Mg-CuXIHEJIN,JIQIANGHUAXIAOGUOZAISUOYOULVHEJINZHONG***DA,YESHIHANGTIAN、HANGKONGGONGYE、DIANLIGONGYESHANGDEZHONGYAODELVHEJINCAILIAO。

 

微量元素的影响

 

铁和硅

易玩棋牌 TIEZAIAl-Cu-Mg-Ni-FeXIDUANLVHEJINZHONG,GUIZAIAl-Mg-SiXIDUANLVZHONGHEZAIAl-SiXIHANTIAOJILVGUIZHUZAOHEJINZHONG,JUNZUOWEIHEJINYUANSUJIADE,ZAIJITALVHEJINZHONG,GUIHETIESHICHANGJIANDEZAZHIYUANSU,DUIHEJINXINGNENGYOUMINGXIANDEYINGXIANG。TAMENZHUYAOYIFeCl3HEYOULIGUICUNZAI。ZAIGUIDAYUTIESHI,XINGCHENGβ-FeSiAl3(HUO Fe2Si2Al9)XIANG,ERTIEDAYUGUISHI,XINGCHENGα-Fe2SiAl8(HUOFe3Si2Al12)。DANGTIEHEGUIBILIBUDANGSHI,HUIYINQIZHUJIANCHANSHENGLIEWEN,ZHULVZHONGTIEHANLIANGGUOGAOSHIHUISHIZHUJIANCHANSHENGCUIXING。

 

钛和硼

易玩棋牌 TAISHILVHEJINZHONGCHANGYONGDETIANJIAYUANSU,YIAl-TiHUOAl-Ti-BZHONGJIANHEJINXINGSHIJIARU。TAIYULVXINGCHENG TiAl2XIANG,CHENGWEIJIEJINGSHIDEFEIZIFAHEXIN,QIXIHUAZHUZAOZUZHIHEHANFENGZUZHIDEZUOYONG。Al-TiXIHEJINCHANSHENGBAOFANYINGSHI,TAIDELINJIEHANLIANGYUEWEI0.15%,RUGUOYOUPENGCUNZAIZEJIANSUXIAODAO0.01%。

 

GEZAIAl-Mg-SiXI、Al-Mg-ZnXI、Al-MgXIHEJINZHONGCHANGJIANDETIANJIAYUANSU。600℃SHI,GEZAILVZHONGRONGJIEDUWEI0.8%,SHIWENSHIJIBENSHANGBURONGJIE。

易玩棋牌 GEZAILVZHONGXINGCHENG(CrFe)Al7HE(CrMn)Al12DENGJINSHUJIANHUAHEWU,ZUAIZAIJIEJINGDEXINGHEHEZHANGDAGUOCHENG,DUIHEJINYOU***DEQIANGHUAZUOYONG,HAINENGGAISHANHEJINRENXINGHEJIANGDIYINGLIFUSHIKAILIEMINGANXING。DANHUICHANGZENGJIACUIHUOMINGANXING,SHIYANGJIYANGHUAMOCHENGHUANGSE。

GEZAILVHEJINZHONGDETIANJIALIANGYIBANBUCHAOGUO0.35%,BINGSUIHEJINZHONGGUODUYUANSUDEZENGJIAERJIANGDI。

 

锶是表面活性元素,在结晶学上锶能改变金属间化合物相的行为。因此用锶元素进行变质处理能改善合金的塑性加工性和***终产品质量。由于锶的变质***时间长、效果和再现性好等优点,近年来在Al-Si铸造合金中取代了钠的使用。对挤压用铝合金中加入0.015%~0.03%锶,使铸锭中β-AlFeSi相变成汉字形α-AlFeSi相,减少了铸锭均匀化时间60%~70%,提高材料力学性能和塑性加工性;改善制品表面粗糙度。对于高硅(10%~13%)变形铝合金中加入0.02%~0.07%锶元素,可使初晶减少至***低限度,力学性能也显著提高,抗拉强度бb由233MPa提高到236MPa,屈服强度б0.2由204MPa提 高到210MPa,延伸率б5易玩棋牌由9%增至12%。在过共晶Al-Si合金中加入锶,能减小初晶硅粒子尺寸,改善塑性加工性能,可顺利地热轧和冷轧。

 

锆元素

GAOYESHILVHEJINDECHANGYONGTIANJIAJI。YIBANZAILVHEJINZHONGJIARULIANGWEI0.1%~0.3%,GAOHELVXINGCHENGZrAl3HUAHEWU,KEZUAIZAIJIEJINGGUOCHENG,XIHUAZAIJIEJINGJINGLI。GAOYINENGXIHUAZHUZAOZUZHI,DANBITAIDEXIAOGUOXIAO。YOUGAOCUNZAISHI,HUIJIANGDITAIHEPENGXIHUAJINGLIDEXIAOGUO。ZAIAl-Zn-Mg-CuXIHEJINZHONG,YOUYUGAODUICUIHUOMINGANXINGDEYINGXIANGBIGEHEMENGDEXIAO,YINCIYIYONGGAOLAIDAITIGEHEMENGXIHUAZAIJIEJINGZUZHI。

 

杂质元素

易玩棋牌 XITUYUANSUJIARULVHEJINZHONG,SHILVHEJINRONGZHUSHIZENGJIACHENGFENGUOLENG,XIHUAJINGLI,JIANSHAOERCIJINGJIANJU,JIANSHAOHEJINZHONGDEQITIHEJIAZA,BINGSHIJIAZAXIANGQUYUQIUHUA。HAIKEJIANGDIRONGTIBIAOMIANZHANGLI,ZENGJIALIUDONGXING,YOULIYUJIAOZHUCHENGDING,DUIGONGYIXINGNENGYOUZHEMINGXIANDEYINGXIANG。GEZHONGXITUJIARULIANGYUEWEI0.1%at%WEIHAO。HUNHEXITU(La-Ce-Pr-NdDENGHUNHE)DETIANJIA,SHIAl-0.65%Mg-0.61%SiHEJINSHIXIAOG?PQUXINGCHENGDELINJIEWENDUJIANGDI。HANMEIDELVHEJIN,NENGJIFAXITUYUANSUDEBIANZHIZUOYONG。

 

杂质元素的影响

 

易玩棋牌 FANZAILVHEJINZHONGXINGCHENGVAl11NANRONGHUAHEWU,ZAIRONGZHUGUOCHENGZHONGQIXIHUAJINGLIZUOYONG,DANBITAIHEGAODEZUOYONGXIAO。FANYEYOUXIHUAZAIJIEJINGZUZHI、TIGAOZAIJIEJINGWENDUDEZUOYONG。

 

GAIZAILVHEJINZHONGGURONGDUJIDI,YULVXINGCHENGCaAl4HUAHEWU,GAIYOUSHILVHEJINDECHAOSUXINGYUANSU,DAYUE5%GAIHE5%MENGDELVHEJINJUYOUCHAOSUXING。GAIHEGUIXINGCHENGCaSi,BURONGYULV,YOUYUJIANXIAOLEGUIDEGURONGLIANG,KESHAOWEITIGAOGONGYECHUNLVDEDAODIANXINGNENG。GAINENGGAISHANLVHEJINQIEXUEXINGNENG。CaSi2BUNENGSHILVHEJINRECHULIQIANGHUA。WEILIANGGAIYOULIYUQUCHULVYEZHONGDEQING。

 

易玩棋牌 QIAN、XI、BIYUANSUSHIDIRONGDIANJINSHU,TAMENZAILVZHONGGURONGDUBUDA,LVEJIANGDIHEJINQIANGDU,DANNENGGAISHANQIEXUEXINGNENG。BIZAININGGUGUOCHENGZHONGPENGZHANG,DUIBUSUOYOULI。GAOMEIHEJINZHONGJIARUBIKEFANGZHINACUI。

 

易玩棋牌 TIZHUYAOYONGZUOZHUZAOLVHEJINZHONGDEBIANZHIJI,BIANXINGLVHEJINHENSHAOSHIYONG。JINZAIAl-MgBIANXINGLVHEJINZHONGDAITIBIFANGZHINACUI。TIYUANSUJIARUMOUXIEAl-Zn-Mg-CuXIHEJINZHONG,GAISHANREYAYULENGYAGONGYIXINGNENG。

 

PIZAIBIANXINGLVHEJINZHONGKEGAISHANYANGHUAMODEJIEGOU,JIANSHAORONGZHUSHIDESHAOSUNHEJIAZA。PISHIYOUDUYUANSU,NENGSHIRENCHANSHENGGUOMINXINGZHONGDU。YINCI,JIECHUSHIPINHEYINLIAODELVHEJINZHONGBUNENGHANYOUPI。HANJIECAILIAOZHONGDEPIHANLIANGTONGCHANGKONGZHIZAI8μg/mlYIXIA。YONGZUOHANJIEJITIDELVHEJINYEYINGKONGZHIPIDEHANLIANG。

 

NAZAILVZHONGJIHUBURONGJIE,***DAGURONGDUXIAOYU0.0025%,NADERONGDIANDI(97.8℃),HEJINZHONGCUNZAINASHI,ZAININGGUGUOCHENGZHONGXIFUZAIZHIJINGBIAOMIANHUOJINGJIE,REJIAGONGSHI,JINGJIESHANGDENAXINGCHENGYETAIXIFUCENG,CHANSHENGCUIXINGKAILIESHI,XINGCHENGNaAlSiHUAHEWU,WUYOULINACUNZAI,BUCHANSHENG“NACUI”。DANGMEIHANLIANGCHAO2%SHI,MEIDUOQUGUI,XICHUYOULINA,CHANSHENG“NACUI”。YINCIGAOMEILVHEJINBUYUNXUSHIYONGNAYANRONGJI。FANGZHI“NACUI”DEFANGFAYOULVHUAFA,SHINAXINGCHENGNaClPAIRUZHAZHONG,JIABISHIZHISHENGCHENGNa2BiJINRUJINSHUJITI;JIATISHENGCHENGNa3SbHUOJIARUXITUYIKEQIDAOXIANGTONGDEZUOYONG。


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