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316L不锈钢储罐材料中〇相的析出

作者:镇田机械 时间:2019-04-04 08:13
316L不锈钢储罐材料中〇相的析出 C相是除了 M23C6型碳化物以外,奥氏体不锈钢中另一种较为常见的析出相。 与M23C6碳化物相比,C相的析出需要更高的界面能,因此其常在大角度晶界、 非共格孪 信息摘要:

316L不锈钢储罐材料中〇相的析出

CXIANGSHICHULE M23C6XINGTANHUAWUYIWAI,AOSHITIBUXIUGANGZHONGLINGZHONGJIAOWEICHANGJIANDEXICHUXIANG。 YUM23C6TANHUAWUXIANGBI,CXIANGDEXICHUXUYAOGENGGAODEJIEMIANNENG,YINCIQICHANGZAIDAJIAODUJINGJIE、 FEIGONGGELUANJINGJIEYIJIYANGHUAWUDENGDIERXIANGJIEMIANXINGHEXICHU[76]。CIWAIHAIYONGYANGUIBIAOMINGDUIYUBUXIU GANGZHONGDE5-TIESUTI,ZAIZHANGQIDESHIXIAOGUOCHENGZHONGHUIFASHENGGONGXIFANYING,SHENGCHENGAOSHITI(YXIANG)HE G XIANG[69]。

水果拉霸多人版 YOUYUCXIANGZHONGLEIJIAODUO,ZAIBUTONGTIAOJIANXIAXINGCHENGCXIANGXINGMAOJICHENGFENGEYI,YINCIZAIAOSHITI BUXIUGANGZHONG,HENNANGENJUSEMZHAOPIANHEEDSFENXIJIEGUOJIANGQIYUTANHUAWUJIGELEIJINSHUJIANHUAHE WUZHUNQUEQUFENKAILAI。DANSHIGENJUXIANGGUANDEYANGUIJIEGUO[69,76-77],AOSHITIBUXIUGANGZHONGDELINGXIANGDADOU FENBUYUTIAOZHUANG5-TIESUTINEIBUJIM23C6TANHUAWUZHOUWEI,YINCIGENJUQIFENBUTEZHENGLAITUIDUANc XIANGDECUNZAISHIKEXINGDE。TU4-7(a)HE(b)FENBIEWEIJING15NIANFUYIDEMUCAISHIYANGZHONGFENBUYU5-TIE SUTIYIJICr3C6TANHUAWUYUAOSHITIJITIJIEMIANSHANGDEcXIANG。

316L不锈钢储罐材料中〇相的析出

水果拉霸多人版 (a)FENBUYU5-TIESUTIDELINGXIANG    (b) CV23C6TANHUAWUBIANJIESHANGDELINGXIANG

水果拉霸多人版 TU4-7FUYI15NIANHOU316LBUXIUGANGMUCAISHIYANGZHONGcXIANGDESEMXIANG

YANGUIBIAOMINGcXIANGZAI5-TIESUTIHEAOSHITIZHONGXICHUDEJILISHIBUTONGDE。5-TIESUTIZAIZHANGQI DESHIXIAOGUOCHENGZHONGHUIFASHENGGONGXIFENJIESHENGCHENGcXIANGHEYXIANG(AOSHITI),QIZHONGcXIANGZAI5-TIESU TIYUAOSHITIJITIDEBIANJIEXINGHEBINGXIANG5-TIESUTINEIBUZHANGDA,RUTU4-7(a)。YOUYU5-TIESUTI ZHONGDECreq/NieqJIAOGAO,cXIANGYIYUXINGHE,VillanuevaDENGRENZAIQIYANGUIZHONGFAXIANDANGAOSHITIBU XIUGANGZHONGYOU5-TIESUTICUNZAISHI,cXIANGDEXICHUSUDUJIANGMINGXIANJIAKUAI[78]。ZAIAOSHITIZHONGYEHUIXICHU cXIANG,DANYOUYUQIYUAOSHITIJITIFEIGONGGE,XICHUSUOXUDEJIEMIANNENGHENDA,YINCIcXIANGZAIAOSHI TIZHONGDECHENDIANXICHUWANGWANGXUYAOJIAOGAODEWENDUJIHENZHANGDESHIJIAN,QIEQIWANGWANGWEIYUDAJIAODUJINGJIEHE TANHUAWUYUAOSHITIDEJIEMIANSHANG[78],RUTU4-7(b)。

YOUYUcXIANGZHONGHEJINYUANSUDESHULIANGJIZHONGLEIBUQUEDING,YINCIMUQIANWEIZHIMEIYOUJUTIDEXICHURE LIXUEJIDONGLIXUEBIAODASHI。DUIYUcXIANGSHIFOUNENGZAIZAIJINSHUZHONGXICHU,TONGCHANGCAIYONGJINSHUDEPINGJUNDIAN ZIKONGWEISHULAIPANDUAN,QIJINGYANGONGSHIRUXIA[79]:

N = 0.66NNl +1.71NcLING +2.66NFe +4.66(Ncr +NMo +NW)+5.66Nv + 6.66N& + 10.66N_    (5)

其中N为金属的平均电子空位数,Nx为各合金元素的电子空位数,当N>2.52 时金属就有可能生成c相。根据316L储罐所用到的不锈钢的成分,利用式5计算得本研宄中 316L不锈钢母材的平均电子空位数远大于2.52,因此从合金元素角度上看,本 研宄所用金属在长期服役过程中生成c相是可能的。

SUIRANcXIANGDEXICHUXUYAOHENGAODEJIEMIANNENG,QIEYUQITAXICHUXIANGXIANGBI,ZAIXIANGTONGWENDUXIAc XIANGXICHUSUOXUSHIJIANYAOZHANGDEDUO,DANSHIZAIJING15NIANFUYIHOUDEMUCAISHIYANGZHONGRENGFAXIANLE cXIANGDE CUNZAI,RUTU4-7SUOSHI。cXIANGDEXICHUBIAOMINGZAIFUYIQIJIANERCIXIANGYOUCHONGFENDESHIJIANXINGHEZHANGDA, ER&23C6TANHUAWUYIJIcXIANGDEFUCrERCIXIANGDECHENDIANXICHU,ZAOCHENGLEAOSHITIJITIDEPINCr, SHIQINAISHIXINGDEXIAJIANG,CUJINYINGLIFUSHIDEFASHENG。

水果拉霸多人版 cXIANGDECUNZAIJIANGHUIXIANZHUCUJINYINGLIFUSHIDEFASHENG,ZHEISHIYOUcXIANGZISHENDETEXINGSUOJUEDINGDE。 XIANYOUYUcXIANGBENSHENWEIYINGCUIXIANG,ZAIYINGLIDEZUOYONGXIA,cXIANGZHOUWEIJIANGCHANSHENGYINGLIJIZHONG。YINCI cXIANGDECHENDIANXICHUJIANGHUISHIBUXIUGANGGOUJIANZAIYINGLIZUOYONGXIAYICHANSHENGLIEWEN,SHIBUXIUGANGGOUJIANDELI XUEXINGNENGXIANZHUJIANGDI[80]。LINGWAIYOUYANGUIBIAOMINGcXIANGDEXICHUHUISHIFUJINQUYUDIANWEISHENGGAO,ZAOCHENG JUBUNAIFUSHIXINGDEJIJUJIANGDI[81]。YINCIDUIYUBENYANGUIZHONGJINGZHANGQIFUYIDE316LBUXIUGANGCHUGUAN, cXIANGDEXICHUYESHICUSHIQIFASHENGYINGLIFUSHIKAILIEDEZHONGYAOYUANYIN。

小结

(1)316LBUXIUGANGCHUGUANFENGTOUDEHANFENGZUZHIYOUAOSHITITIESUTIZUCHENG,QININGGUMOSHIWEI FAMOSHI。BUXIUGANGCHUGUANFENGTOUMUCAIZUZHIYOUAOSHITIHECHENGTIAOZHUANGFENBUDE5-TIESUTIZUCHENG,ZAI ZHANGQIFUYIGUOCHENGZHONG,YANTIESUTI/AOSHITIJIEMIANHEBIANXINGDAIYOUM23C6TANHUAWUXICHU。CIWAIZAI5- TIESUTIZHONGHEAOSHITI/TANHUAWUJIEMIANHAIFAXIANYOUcXIANGCUNZAI

水果拉霸多人版 (2)YINGLIFUSHISHIYANJIEGUOBIAOMINGJING15NIANFUYIHOU316LBUXIUGANGCHUGUANMUCAIHEREYINGXIANG QUDENAIYINGLIFUSHIXINGNENGMINGXIANXIAJIANG,QIZHONGREYINGXIANGQUXIAJIANGDEGENGWEIMINGXIAN。ZAISHIYANZHONGSUOCHANSHENG DEYINGLIFUSHILIEWENZHUYAOYICHUANJINGXINGSHIKUOZHAN。

水果拉霸多人版 (3)AOSHITIMUCAIYOUYUZAIXUANYAZHIZAOGUOCHENGZHONGFASHENGLEJIAODABIANXING,YINERYINGDUJIAOGAO, ERHANFENGYINGDUJIAODI。ZAIREYINGXIANGQUYOUYUFASHENGLEHUIFUZAIJIEJINGJIJINGLICUHUA,YINGDUYUMUCAIXIANG BIYOUSUOJIANGDI。ERHANFENGDEYINGDU。

(4)DIANJIEJINSHISHIYANJIEGUOBIAOMINGWULUNSHIMUCAIHAISHIREYINGXIANGQU,JINGJIEDENAISHIXINGDOUWEI FASHENGMINGXIANXIAJIANG,316LBUXIUGANGCHUGUANNAISHIXINGDEXIAJIANGZHUYAOSHIYOUYANBIANXINGDAIXICHUFUCrXIANGER ZAOCHENGZHOUWEIZUZHIPINCrYINQIDE,QIZHONGREYINGXIANGQUTANHUAWUHEcXIANGDENGFUCrXIANGDEXICHULIANGMINGXIAN DUOYUMUCAI。

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