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钛合金锻件在航空航天领域的主要应用和锻造技术

发布时间:2020-12-10 09:03:48 浏览次数 :

在各种钛合金制品的应用中,锻件多被用于气轮机压缩机盘以及医用人工骨等要求高强高韧高可靠性的场合。因此,对锻件不仅要求尺寸精度高,而且要求材料具有优良的特性和高的稳定性。为此,在钛锻件的制造过程中要充分发挥钛合金特性,以获得高质量的锻件。钛合金属难锻材,易产生裂纹。所以钛合金锻件生产中最重要的就是对锻造温度和塑性变形进行适当的控制。

钛合金法兰

1、钛合金锻件的应用领域

1)YUHANGLINGYU

SHIJIESHANG50%DETAICAIDOUYONGYUYUHANGLINGYU。JUNYONGFEIJIDEJITI30%SHIYONGTAIHEJIN,MINYONGFEIJIZHONGTAIDEYONGLIANGYEZAIZHUJIANZENGJIA。JUBAODAO,BOYIN787FEIJIDEYONGTAILIANGYIJINGDADAO15%YISHANG。JITIYONGTAIHEJINDEDAIBIAOSHITi-6Al-4VHEJIN,KEKAOXINGZUIGAO。JINβXINGGAOQIANGGAORENTAIHEJINTi-10V-2Fe-3AlYIYINGYONGYUBOYIN777FEIJIDEQILUOJIABUJIANZHONG,A380YIJINGZAITANTAOSHIYONGTi-10V-2Fe-3AlHEJINDAXINGDUANJIANZUOWEIZHUQILUOJIADECHUANDONGZHUANGZHI。

若能实用,这将是长达7m的最大的钛合金锻件。在飞机发动机中,钛合金也是不可或缺的材料,主要用于使用温度在853K以下的风扇和压缩机零件。典型的使用部位有风扇叶片、外壳、盘件,压气机叶片、盘件、短轴、外壳等。使用的钛合金有Ti-6Al-4V,Ti-6Al-2Sn-4Zr-6Mo,Ti-5Al-2Sn-2Zr-4Cr-4MbTi-17) , Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si等。在航天领域,钛合金锻件被用于火箭及卫星推进发动机的燃料箱、姿控发动机外壳、液体燃料涡轮泵的叶片和吸入泵的入口段。这些部位大多使用低温韧性极佳的低间隙元素型Ti-5Al-2.5SnELI合金。

2)FADIANYONGQILUNJIYEPIAN

HUOLIFADIANDEZHENGQILUNJIZENGJIAYEPIANZHANGDUSHITIGAOFADIANXIAOLVDEYIGEYOUXIAOCUOSHI,DANYEPIANJIAZHANGHUIZENGDAZHUANZIDEFUHE。SHIYONGTAIHEJINDUANJIANZUOYEPIANJIUKEYIJIANQINGFUHE,ZAIGAOSUXUANZHUANDEQILUNJIMODUANSHIYONG1mZHANGDETi-6Al-4VHEJINYEPIAN,ZAI1991NIANJIUYIJINGSHIYONGHUA。

钛环

2、钛合金的锻造技术

ZAITAIHEJINDEREJIAGONGZHONG,JIAREWENDUZHIGUANZHONGYAO。WENDUYUEDIBIANXINGKANGLIYUEDA,QIEYICHANSHENGLIEWENDENGQUEXIAN。TONGSHIDUIBIANXINGSUDUYEYOUHENDADEYILAIXING,ZHEIXIEDOUSHIDUANZAOZHONGYINGGAITEBIEZHUYIDEDIFANG。TAIHEJINJINGMIREMOJIAGONGGUOCHENGZHONG,SHIDUANMODEWENDUJIAREDAOYUDUANJIANXIANGDANGHUOGENGGAO,KEYIYIZHIDUANZAOZHONGDUANJIANWENDUDEJIANGDI。YOUYUGAIFANGFABIANXINGNENGLIGAO,YONGJIAOSHAODEJIARECISHUJIUKEYIDUANZAOCHUGENGBOBIDEJINGMIDUANJIAN。DANZHEIZHONGFANGFAYAOSHIYONGJIAGEANGGUIDENiJIHUOMoJIGAOWENHEJIN,QIESHENGCHANXIAOLVJIAODI,SUOYIZAIJINGJIXINGSHANGMIANLINJIAODAWENTI。

1)FADONGJIPANJIANDEDUANZAOJISHU

FEIJIFADONGJIYONGPANJIAN,YAOQIUGAODEPILAOQIANGDUHEDUANLIERENXING。ZAI700KZUOYOUZHONGWENQUYUSHIYONGTi-6Al-2Sn-4Zr-6MoHEJINDUANJIAN。CHUANTONGDEJIAGONGFANGFASHIZAIa-βQUDUANZAO,QIZUZHIWEIβXIANGHEDENGZHOUaJINGLIJIXIXIAODEZHENZHUANGaLIANGXIANGZUZHI,DUANLIERENXINGZHIJIAODI。WEIGAISHANZHEIYIDIAN,KAIFALEZAIβQUJIAREDEβDUANZAOFA。βDUANZAOFASHIZAIβXIANGBIANWENDUZHISHANGJIAREDUANZAO,HUICHANSHENGZAIJIEJING,SUOYIDUANZAOWENDUHEJIAGONGBIANXINGDUICAILIAOTEXINGYOU HENDAYINGXIANG,BUYUNXUDUANZAOZHONGJINXINGZAICIJIAREERTINGZHIBIANXING。YINCI,βDUANZAOZHONGBIXUYANGEKONGZHIDUANZAOWENDUHEBIANXINGLIANG。DUIYUTi-6Al-2Sn-4Zr-6MoHEJIN,JIAGONGWENDUZAI10731323KFANWEINEI,QIEYAOYOUZUGOUDEJIAGONGBIANXINGLIANG。

其锻件组织全部为针状,断裂韧性值由原先的30MPa*m 1/2提高到50MPa*m 1/2

钛合金锻件

2)WOLUNJIYEPIANDUANZAOJISHU

WOLUNJIYEPIANHENBO,ZAIDUANZAOGUOCHENGZHONGWENJIANGHENKUAI,YIBANDOUYONGYAXIASUDUKUAIQIEDANCIJIAGONGNENGLIANGDADELUOXUANYALIJIJINXINGDUANZAO。CHUIDUANSHI,YINYEPIANXINGZHUANGNIUZHUANCHANSHENGDAJIHENGXIANGLI,GUMOJUYAOJINGQUESHEJI。XIANZAIZHENGZAIKAIFAYOUXIAOLIYONGSHANGXIADAJINENGLIANGJINXINGYEPIANBIAOMIANCHENGXINGDEGONGYI,XIANJINXINGPINGMIANDUANZAO,ZAIWANQUCHENGXING,ZUIHOUZAIJINGDUANCHENGXING。

3)HUANJIANZHIZAOJISHU

FADONGJIFENGSHANWAIQIAOJIYASUOJIQIAODENGDOUSHIYONGLEDAXINGDETi-6A1-4VHEJINYAZHIHUANJIAN。DUIYUCAILIAOFEIYONGXIANGDUIJIAOGAODETAIHEJINZHIPIN,JIANGDICAILIAODETOURULIANGDUIYUJIANGDICHENGBENFEICHANGYOUXIAO,YOUQISHIJINJINGCHENGXINGJISHUGENGWEIYOUXIAO。YIV2500FADONGJIFENGSHANWAIQIAOWEILI,YUHUANJIANQIEXUEJIAGONGXIANGBI,JINJINGXINGJIANDECAILIAOYONGLIANGJIANSHAO55%YISHANG。

HOUHUANJIANJIAGONGSHI,WEIBIMIANCHANSHENGLIEWEN,YAOJINKENENGJIYUYAYINGLI,ERQIEYAOZHUYIZUZHIDEKONGZHIHEJIAGONGSHIHUANJIANDEWENJIANG。

ZONGZHI,TAIHEJINDUANJIANDESHENGCHAN,YAOZAIHESHIDEJIAGONGWENDU,SHIDANGBIANXINGCAINENGHUODEGAOZHILIANGDUANJIAN。

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