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首頁(yè) >> 產(chǎn)品中心 >> 鈦鍛件 >> 鈦餅
  • 鈦合金餅
  • 鈦合金餅
  • 鈦合金餅
  • 鈦合金餅

鈦合金餅

材質(zhì):TA1、TA2、TA9、TA10、TC4、GR1、GR2、GR5、GR7、GR12

執(zhí)行標(biāo)準(zhǔn): GB/T 16598,ASME SB381

瀏覽次數(shù):

發(fā)布日期: 2022-10-06 15:28:54

全國(guó)熱線(xiàn): 0917-3376170

詳細(xì)描述 / Detailed description

一、名稱(chēng):

鈦合金餅、 鈦合金鍛件 

一、牌號(hào)

TA1、TA2、TA9、TA10、TC4、GR1、GR2、GR5、GR7、GR12。

二、執(zhí)行標(biāo)準(zhǔn)

GB/T 16598,ASME SB381

三、表   面

鍛造表面、軋制表面、車(chē)光表面、磨光表面。

四、應(yīng)用領(lǐng)域

應(yīng)用于航天、醫(yī)療、化工、石油化工、船舶、電解、電鍍等行業(yè)。

五、鈦的性能

1、強(qiáng)度高

鈦合金的密度一般在4.5g/cm3左右,僅為鋼的60%,純鈦的強(qiáng)度才接近普通鋼的強(qiáng)度,一些高強(qiáng)度鈦合金超過(guò)了許多合金結(jié)構(gòu)鋼的強(qiáng)度。因此鈦合金的比強(qiáng)度(強(qiáng)度/密度)遠(yuǎn)大于其他金屬結(jié)構(gòu)材料,可制出單位強(qiáng)度高、剛性好、質(zhì)輕的零、部件。目前飛機(jī)的發(fā)動(dòng)機(jī)構(gòu)件、骨架、蒙皮、緊固件及起落架等都使用鈦合金。

2、熱強(qiáng)度高 

使用溫度比鋁合金高幾百度,在中等溫度下仍能保持所要求的強(qiáng)度,可在450~500℃的溫度下長(zhǎng)期工作這兩類(lèi)鈦合金在150℃~500℃范圍內(nèi)仍有很高的比強(qiáng)度,而鋁合金在150℃時(shí)比強(qiáng)度明顯下降。鈦合金的工作溫度可達(dá)500℃,鋁合金則在200℃以下。   

3、抗蝕性好

鈦合金在潮濕的大氣和海水介質(zhì)中工作,其抗蝕性遠(yuǎn)優(yōu)于不銹鋼;對(duì)點(diǎn)蝕、酸蝕、應(yīng)力腐蝕的抵抗力特別強(qiáng);對(duì)堿、氯化物、氯的有機(jī)物品、硝酸、*等有優(yōu)良的抗腐蝕能力。但鈦對(duì)具有還原性氧及鉻鹽介質(zhì)的抗蝕性差。

六、TC4鈦合金材料

鈦合金具有低質(zhì)高強(qiáng)、良好的高溫強(qiáng)度和較好的耐腐蝕性等性能,在航空航天、航海、汽車(chē)和醫(yī)療器械、運(yùn)動(dòng)器材等新興領(lǐng)域得到了廣泛的運(yùn)用。 作為一種中等強(qiáng)度α-β 型鈦合金,TC4主要用于制造飛機(jī)機(jī)身、機(jī)翼零件和發(fā)動(dòng)機(jī)葉片等,是目前應(yīng)用最廣泛的鈦合金。TC4鈦合金強(qiáng)度高,熱穩(wěn)定性好,耐蝕性?xún)?yōu)異,生物相容性好,被譽(yù)為王牌鈦合金,在諸多領(lǐng)域得到應(yīng)用,也已開(kāi) 始作為油管材料使用。

TC4鈦合金屬于α+β型合金,其性能與組織結(jié)構(gòu)密切相關(guān)。密排六方結(jié)構(gòu)的α相和體心立方結(jié)構(gòu) 的β相構(gòu)成了TC4鈦合金的基本相,兩相的比例、形狀和尺寸直接決定著 TC4 的力學(xué)性能。TC4鈦合金的初始微觀組織形貌主要取決于成形工藝過(guò)程中的冷卻速率,冷卻速率越高,組織越細(xì)化。

TC4鈦合金具有比強(qiáng)度高、密度小、耐蝕性好、 優(yōu)良的韌性和焊接性等優(yōu)點(diǎn),在航空航天、石油化工、造船、汽車(chē)等領(lǐng)域都得到成功的應(yīng)用。結(jié)合其 性能優(yōu)勢(shì),民用航空發(fā)動(dòng)機(jī)的葉片和渦輪盤(pán)等重要部件大多采用 TC4材料制作而成。

TC4鈦合金鍛造工藝

(1) 在變形溫度 1000℃和變形量 50%時(shí),變形速率低于或者高于 2mm/s 都有助于減小鍛件損傷值,提高鍛件質(zhì)量。

(2) 在變形溫度 925℃, 變形速率 1000 mm/s, 變形量 70%時(shí)鍛件質(zhì)量良好。

(3) TC4鈦合金鍛件鍛造變形過(guò)程中各個(gè)鍛造 工藝參數(shù)對(duì)鍛件最大損傷的影響依次為變形速率 > 變形量 > 變形溫度。

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