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山西快乐十分APP下载 ZHAIYAO:BUXIUGANGDIEFAZAISHIYONGGUOCHENGZHONGCHUXIANXIUSHIXIANXIANG。JINGGUOJINXIANGZUZHIFENXI、RANSESHILIAN、RECHULISHILIAN、SEM DENGSHIYANFENXI,ZHAODAOLECAILIAOXIUSHIDEGUANJIANYINSUSHIYINWEICAILIAOZHONGYANJINGJIEDETANHUAWUXICHUXINGCHENGPINGEQU,CONGERZAOCHENGBUBUXIUGANGDIEFAXIUSHI。

关键词蝶阀锈蚀碳化物

材质为 CF8M 的不锈钢蝶阀在使用过程中出现锈蚀现象。奥氏体不锈钢经正常热处理后,室温下组织应为奥氏体,耐蚀性能很好。为了分析蝶阀的锈蚀原因,在其上取样进行分析。

1 试验方法

QUYANGJINXINGHUAXUECHENGFENFENXI(PANDUANSHIFOUFUHEBIAOZHUNYAOQIU)、JINXIANGZUZHIJIANCHA、RECHULIGONGYISHIYANJI SEM FENXI。

2 试验结果及分析

2.1 化学成分

HUAXUECHENGFENFENXIJIEGUOJIBIAOZHUNCHENGFENJIAN《BIAO 1》。

《表 1》 化学成分分析结果 / %
成分 C Si Mn P S Cr Ni Mo
CF8M 0.08 1.5 1.5 0.04 0.04 18~21 9~12 2~3
蝶阀 0.10 0.60 0.61 0.024 0.009 18.05 9.71 1.45

2.2 金相分析

CONGCHUXIANXIUSHIXIANXIANGDEDIEFASHANGQIEQULEJINXIANGSHIYANG,JINGMOZHIPAOGUANGHOU,YONGSANLVHUATIESHUIRONGYEFUSHI,ZAI Neophot-32 JINXIANGXIANHUIJINGSHANGGUANCHAFENXI,QIJINXIANGZUZHIYOUAOSHITIYULINGYIZHONGXICHUWUZUCHENG。CONGLILUNSHANGJIANGAOSHITIBUXIUGANGJINGZHENGCHANGRECHULIHOU,YINGDEDAOJUNYIAOSHITIZUZHI。ZUZHIZHONGCHUXIANDELINGYIXICHUWUJIUJINGSHIHEZUZHI,YOULIANGZHONGPANDUAN:YISHI σ XIANG,LINGYIZHONGSHITANHUAWU。σ XIANGYUTANHUAWUXINGCHENGDETIAOJIANBUTONG,DANDOUJUYOUYIGEGONGTONGDETEDIAN,NEIJIUSHIZAOCHENGAOSHITIBUXIUGANGDUIJINGJIANFUSHIDEMINGANXING。

SHOUXIANCAIYONGLEZASEFAJINXING σ XIANGDEJIANBIE。CAIYONGJIANXINGCHIXUEYANSHUIRONGYE(CHIXUEYAN 10g + QINGYANGHUAJIA 10g + SHUI 100ml),SHIYANGZAIGAISHIJIZHONGZHUFEI2~4 min HOU,TIESUTICHENGHUANGSE,TANHUAWUBEIFUSHI,AOSHITICHENGGUANGLIANGSE,σ XIANGYOUHESEBIANWEIHEISE。YONGSHANGSHUFANGFAJIANGCONGDIEFASHANGQIEQUDESHIYANGZAIJIANXINGCHIXUEYANSHUIRONGYEZHONGZHUFEI 4 min HOU,ZAIXIANHUIJINGXIAGUANCHA,XICHUWUBAOCHILEYUANXINGMAO,WEIFAXIANMINGXIANBIANHUA。YINCIJUEDINGCAIYONGRECHULIDEFANGFAJINYIBUSHILIANFENXI。

2.3 热处理试验分析

山西快乐十分APP下载 σ XIANGSHIYIZHONGTIEGEYUANZIBILIDAZHIXIANGDENGDEJINSHUJIANHUAHEWU。HUAXUECHENGFEN、TIESUTI、LENGBIANXING、WENBIANDOUBUTONGCHENGDUDIDUI σ XIANGXINGCHENGCHANSHENGYINGXIANG。CAIYONGRANSEFASHIYAN,ZAIXIANWEIJINGXIAGUANCHAXICHUXIANGBIANHUABUMINGXIAN,GUCAIYONGLERECHULIDEFANGFALAIJIANBIE σ XIANG。YOUGUANZILIAOJIESHAO,σ XIANGTONGCHANGSHIZAI 500~800℃ ZHANGQISHIXIAOZHONGXINGCHENGDE。ZHEISHIYINWEIJIAOGAODEWENDUXIASHIXIAOYOULIYUGEDEKUOSAN。ZAIGAOWENDUJIARE σ XIANGJIANGKAISHIRONGJIE,RONGJIEWANBIZHISHAOYAOZAI 920℃ YISHANG。ZAIGAOYU σ XIANGDEWENDINGWENDUJIAREKESHIZHIXIAOCHU。XINGCHENG σ XIANGSUOXUSHIJIANSUIRANHENZHANG,DANXIAOCHU σ XIANGYIBANZHIYAODUANSHIJIANJIAREJIKE。GENJUZHEIYILILUN,ZHIDINGLERECHULIGONGYI,GUANCHAZUZHIZHONGDEXICHUXIANGSHIFOUKEYIXIAOCHU。JIANGCONGDIEFASHANGQIEQUDESHIYANGJIAREDAO 940℃,BAOWEN 30 min,RANHOUZAI Neophot-32 JINXIANGXIANWEIJINGSHANGGUANCHAFENXI。JINGRECHULIHOUDESHIYANGZHONGDEXICHUXIANGMEIYOUXIAOCHU,BINGBAOCHIYUANXINGMAO,YOUCIZHENGMINGLEGAIZUZHIZHONGDEXICHUXIANGYOUKENENGBUSHI σ XIANG。

2.4 SEM 分析

YOUSHIGANGZHONGCHUXIANDE σ XIANG,CAIYONGRENHERANSEDEFANGFAJUNWUFABIANBIEQIPOSE,KECAIYONG SEM DEFENXIFANGFALAIJIANBIE。YINWEIYIZHI σ XIANGWEITIEYUGEDEHUAHEWU,HANGELIANGWEI 42%~48%,TONGGUO EDS DINGXINGHEDINGLIANGFENXICECHUWEIZHIXIANGDEZUCHENGYUANSUJIQIHANLIANG,CONGERQUEDINGWEIZHIXIANG。

DUIJITIHEXICHUXIANGJINXINGDEWEIQUDINGLIANGFENXIJIEGUOJIAN《BIAO 2》。

《表 2》 EDS 定量分析结果 / %
成分 Fe Cr Ni Mo Si Mn
基体 70.463 16.365 10.211 1.239 0.466 1.257
析出相 56.908 33.629 3.681 4.835 0.040 0.907

EDS FENXIJIEGUOBIAOMING,XICHUWUDEHANGELIANGWEI 33.6%,MINGXIANGAOYUJITIZHONGDE Cr HANLIANG 16.3%,ER σ XIANGDEHANGELIANGSHI 42%~48%,YINERFOURENXICHUXIANGWEI σ XIANG。ZONGHERANSESHILIAN、RECHULISHIYANDEJIEGUO,RENWEIBUXIUGANGDIEFAZUZHIZHONGDEXICHUXIANGBUSHI σ XIANG。JING SEM GUANCHAXICHUXIANGWEIYIZHONGGONGJINGZUZHI,SHIYIGEWEIZHUDETANHUAWU。

山西快乐十分APP下载 BUXIUGANGDIEFADECAILIAOWEINIEGEAOSHITIBUXIUGANG,ZHEIZHONGCAILIAOYIBANDOUZAIGURONGZHUANGTAIXIASHIYONG。ZAISHIWENZHUANGTAIXIA,QIZUZHIWEIAOSHITI,AOSHITIBUXIUGANGZAIGUANGFANDEFUSHIJIEZHIZHONGTEBIESHIDAQIZHONGJUYOULIANGHAODEKANGFUSHINENGLI。DUIBUXIUGANGDIEFAXIUSHIDEYUANYINFENXIRUXIA:

① ZONGHESHANGSHUGEXIANGSHIYANDEJIEGUO,KEPANDINGDIEFACAILIAOZUZHIZHONGXICHUXIANGBUSHI σ XIANG,GUDIEFADEXIUSHIXIANXIANGBUSHIYOU σ XIANGYINQIDE。

② TONGGUO SEM GUANCHA,QUERENDIEFADEZUZHIZHONGXICHUXIANGSHIYIGEWEIZHUDETANHUAWU,ZHEIZHONGGONGJINGZUZHIYANJINGJIEFENBU。EDS FENXIJIEGUOBIAOMINGZHEIZHONGFENBUZAIJINGJIESHANGDETANHUAWUGEHANLIANGMINGXIANGAOYUJITI。ZHEIZHONGTANHUAWUSHI M<sub>23</sub>C<sub>6</sub> XING。SUITANHUAWUDEXICHU,YOUDEBUDAOGEDEKUOSANBUCHONGSHI,YITANHUAGEDEXINGSHIYANAOSHITIJINGJIEXICHU,ZAITANHUAWUZHOUWEIXINGCHENGPINGEQU,CONGERAOSHITIBUXIUGANGJINGJIEYIBEIFUSHI。SUOYIYANJINGJIEXICHUDETANHUAWUSHIZAOCHENGDIEFAXIUSHIDEZHUYAOYUANYIN。

山西快乐十分APP下载 ③ JINGGURONGCHULIHOUDEAOSHITIBUXIUGANG,YOUYUZAIGAOWENJIARESHIDABUFENTANHUAWUBEIRONGJIE,AOSHITIZHONGBAOHELEDALIANGDETANYUGE,BINGYINSUIHOUDEKUAISULENGQUEERGUDINGXIALAI,SHICAILIAOYOUHENSHANGDENAIFUSHIXING。YINCIYINGYANGEKONGZHIRECHULIGONGYI,GURONGCHULISHIJIANGGONGJIANJIAREZHIGAOTUI,SHITANHUAWUCHONGFENRONGJIE,RANHOUXUNSULENGQUE,DEDAOJUNYIAOSHIXIUZUZHI。GURONGCHULIHOU,RUGUOCAIYONGHUANMANLENGQUE,ZAILENGQUEGUOCHENGZHONGTANHUAGEJIANGYANJINGJIEXICHU,CONGERDAOZHICAILIAONAIFUSHIXINGNENGJIANGDI。


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