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鍛(duan)件鋼材、熱處理和(he)試樣

文章來源:sjzwx 更新時間:2014-02-17 10:43:15

 試(shi)(shi)(shi)驗(yan)用(yong)了(le)3mm厚商業純(chun)度(du)(du)(du)(du)304不(bu)銹鋼板,其化學成分如表1,平均晶(jing)粒度(du)(du)(du)(du)為(wei)5即tn.全(quan)部試(shi)(shi)(shi)樣(yang)在(zai)(zai)具(ju)有(you)惰(duo)性氣休氣氛的(de)(de)(de)電(dian)爐中,經(jing)1373K(11000C)x1.8ks(30min)加熱,隨后(hou)水(shui)淬的(de)(de)(de)固溶一韌化處(chu)理,以去掉(diao)制作過(guo)程中造成的(de)(de)(de)任何(he)影響。一組(zu)試(shi)(shi)(shi)樣(yang)在(zai)(zai)具(ju)有(you)惰(duo)性氣體(ti)氣氛的(de)(de)(de)電(dian)爐中,經(jing)7073K(SCO'C)x1.8Ks(30rnin)加熱隨后(hou)水(shui)冷的(de)(de)(de)敏(min)化處(chu)理。經(jing)指定工(gong)藝熱處(chu)理后(hou)的(de)(de)(de)材料(liao)加工(gong)成圖(tu)1所示(shi)形狀(zhuang),再進行試(shi)(shi)(shi)驗(yan)。2.陰極充(chong)(chong)電(dian)充(chong)(chong)氫用(yong)丙酮將試(shi)(shi)(shi)徉脫脂后(hou),在(zai)(zai)。.25kmo1!nrn3(0.SrN、HDSO;一二As,O;(0.Sglm'}}的(de)(de)(de)溶液中r釗極充(chong)(chong)電(dian)充(chong)(chong)氫,其參數為(wei):溫(wen)度(du)(du)(du)(du)323K(50C)、時fill8c.4'<-"(24h)、,包流密.支L.5k.A./m'(0,2S.A/cm2)。充(chong)(chong)氫后(hou),式(shi)樣(yang)貯存(cun)在(zai)(zai)液態氮中,試(shi)(shi)(shi)K時取出.以免(mian)氫逸出。3.拉(la)伸試(shi)(shi)(shi)ill拉(la)伸試(shi)(shi)(shi)3l在(zai)(zai)Instran'J試(shi)(shi)(shi)9機進行:調整十字頭速(su)度(du)(du)(du)(du)通(tong)常到相應(ying)的(de)(de)(de)應(ying)變速(su)率2.1丫1G-as-’用(yong)合適(shi)地預定fm度(du)(du)(du)(du)浴糟(zao)得(de)到所需溫(wen)度(du)(du)(du)(du)。

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