Z8NCDT42鈦及鎳基合金-高溫合金|GH
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百度百科-驗(yàn)證 if (!window['__abbaidu_2020_subidgetf']) { window['__abbaidu_2020_subidgetf'] = function () { var subid = 01000000; return subid; }; } !function(){ var $ = require('wiki-common:widget/lib/jquery/jquery'); var Dialog = require('wiki-common:widget/ui/dialog/dialog'); var ClickstreamSdk = require('wiki-common:widget/util/clickstreamSdk'); var clickstream = new ClickstreamSdk.default({ appname: 'baike', platform: 'web', device: 'pc', page: 'spam', auto: true }); var sourceUrl = "\/item\/Z8NCDT42"; var fromPage = "pc_lemma_page_risk_score"; var logParam = { page: 'spam', fromPage: fromPage } clickstream.logActEvent($.extend({}, logParam, {'act_type': 'show'})); function init() { if (window.sdkMachine) { var machineSDK = new window.sdkMachine({ container: document.body, title: '訪問異常,請(qǐng)進(jìn)行驗(yàn)證', ak: 'GHm64ouBF7GGAhXNcsae9xiVByAGWhMI', deviceType: 'pc', type: 'spin', testUrl: '', initApiSuccessFn: function() { machineSDK.init(); }, errorFn: function(err) { alert('errfn___' + err.message || '') }, verifySuccessFn: function(result) { $.ajax({ type: 'GET', url: '/api/anticrawl/captchaverify', dataType: 'json', data: { ds: result.ds, passTk: result.tk, clientType: 'pc', tk: "d4b87f38b35a5e84f28e8674b41132db", sourceFrom: fromPage }, success: function(res) { if (res && res.errno === 0 && !res.isSpam) { clickstream.logActEvent($.extend({}, logParam, {'act_type': 'verify-pass'})); if (sourceUrl) { machineSDK.close(); window.location.href = sourceUrl; } } else { var submitInform = Dialog.inform({ icon: 'WARNING', mainMsg: '驗(yàn)證失敗,請(qǐng)重新驗(yàn)證' }); submitInform.show(); setTimeout(function() { submitInform.hide(); }, 3000); machineSDK.close(); init(); } } }); }, verifyFailFn: function() { }, feedbackEvent: function(feedback) { return true; }, }); } }; init(); }(); !function(){ require('wiki-common:widget/component/psLink/psLink'); var clickstream = require('wiki-common:packages/utils/logger'); clickstream.logViewPage({ page: 'all-pc' }); var tmpBaiduId = ''; require(['wiki-common:widget/util/setBaikeTmpBaiduId.es'], function (setBaikeTmpBaiduId, cookie) { setBaikeTmpBaiduId(tmpBaiduId); }); }(); Z8NCDT42Z8NCDT42是Fe-Ni-Cr基沉淀硬化型變形高溫合金,合金以亞穩(wěn)的γ'{Ni3(TI,Al)}相進(jìn)行時(shí)效強(qiáng)化,微量的鋁抑制γ'向ηNi3Ti相的轉(zhuǎn)化。合金在650℃以下具有較高的屈服強(qiáng)度和持久強(qiáng)度,760℃以下抗氧化性能良好,長期使用組織穩(wěn)定。Z8NCDT42高溫合金已用于制作航空發(fā)動(dòng)機(jī)及地面燃?xì)鉁u輪的轉(zhuǎn)動(dòng)件和緊固件,合金零部件的使用壽命較長。Z8NCDT42高溫合金經(jīng)標(biāo)準(zhǔn)熱處理在550℃-750℃范圍內(nèi)經(jīng)不同時(shí)間長期時(shí)效后均元缺口敏感。但當(dāng)鍛造時(shí),若工藝參數(shù)選擇或操作不當(dāng)時(shí),經(jīng)標(biāo)準(zhǔn)熱處理后可在晶界析出長條狀或片狀的有害相Ti2SC以及大顆粒狀硼化物和Ti(CN)相,導(dǎo)致持久試驗(yàn)時(shí)產(chǎn)生缺口敏感,此時(shí)不可能通過熱處理消除缺口敏感,而只能重新熱加工變形才能獲得適宜組織。合金的膨脹系數(shù)接近鐵素體型熱強(qiáng)合金鋼,使用是兩種材料能夠連接且對(duì)熱脹沒有特殊規(guī)定。 PRODUCT PARAMETERS 產(chǎn)品參數(shù) 合金化學(xué)成分元素CCrNiMoAlTiFeBCuSPSiMn***小0.0211.040.05.02.8Bal0.010.0614.045.06.50.33.10.020.20.0080.020.40.5熱性能熔化溫度范圍 熔點(diǎn)為1360℃熱導(dǎo)率θ/℃1002003004005006007008009001000λ/(W/(m·C))12.013.515.116.718.219.821.222.824.325.1線膨脹系數(shù)θ/℃20~10020~20020~30020~40020~50020~60020~70020~80020~900α/10-6C-113.514.014.414.915.115.215.516.016.5熱擴(kuò)散率θ/℃20100150250350450550650950Q/(10-6m2/S))2.662.933.003.183.473.733.784.024.11密度ρ=8.21g/cm3電性阻率θ/℃20100200300400500600700800900p/(10-6Ω.M))1.0731.0951.1321.1621.1991.2291.2541.2751.3091.316磁能型合金無磁性化學(xué)性能抗氧化性能 在空氣介質(zhì)中試驗(yàn)100h后的氧化速率θ/℃6007008009001000氧化速率/(g/(m3·h))0.00720.01400.05220.16650.2367耐腐蝕性能 合金在鹽酸溶液中容易產(chǎn)生點(diǎn)耐蝕。 上一頁:Pyromet CTX-909