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堆焊耐磨板

文章出处:作者:人气:0发表时间:2016/12/20 13:47:53【

堆焊耐磨板.jpg

  堆焊耐磨板是一种抗氧化和强度等级更高的奥氏体耐磨复合钢板,是制造超超临界锅炉过热器和再热器管的首选材料之一,并在USC机组得到大量的应用。本文对奥氏体耐磨复合钢板高温应力时效后相变生成马氏体的类型、形态、分布、数量进行实验研究,分析马氏体组织对堆焊耐磨板磁性的影响。

  实验材料为标准热处理制成的堆焊耐磨板卷管(规格为Φ44.5mm×9mm),样品的化学成分(质量分数,%)为:C0.09,Si0.27,Mn0.82,S0.0005,P0.009,Cr18.57,Ni8.60,N0.07,Nb0.38,Al0.013,B0.014,Cu2.78。时效样品为某台1000MW锅炉高温过热器管,时效长达1.9×104h,时效管内蒸汽的温度和压力分别为650℃和51MPa。

  YONGSmartlabXINGGAOFENBIANXSHEXIANYANSHEYI(XRD)QUERENXINYANGPINHEGAOWENSHIXIAOYANGPINZHONGSHIFOUCUNZAIMASHITIXIANGBINGYONGKZHIFAJINXINGBANDINGLIANGFENXI,YONGQuanta400HVXINGSAOMIAODIANJING(SEM)HEJEM2010XINGTOUSHEDIANJING(TEM)JINXINGXINGTAIGUANCHA,YONGTEMJINXINGDIANZIYANSHEFENXIQUEDINGMASHITIXIANG,YONGTEMDAIDENENGPUYI(EDS)JINXINGWEIQUCHENGFENFENXI,YONGAztecEDS+EBSDXINGDIANZIBEISANYANSHEJISHU(EBSD)JINXINGXIANGJIEGOUFENXIHEDINGLIANG,YONGVersaLabXINGZONGHEWUXINGCELIANGXITONG(VSM)JINXINGCIXUECANSHUCELIANG,GAOWENSHIXIAOYANGPINDETANHUAWUCUIQUCAIYONGDIANJIEFA。

  JIEGUOBIAOMING:

  (1)DUIHANNAIMOBANJING650℃/51MPa/1.9WANXIAOSHISHIXIAOHOU,ZUZHIZHONGCHUXIANLEα'-MASHITI,WEIYUPINGEQUNEIDEJINLINJINGJIEQU,YAJIEGOUWEIGAOMIDUWEICUO。

  (2)DUIHANNAIMOBANGAOWENYINGLISHIXIAOYANGPINJINLINJINGJIEQUGEYUANSUDEPINHUAYOUFALEMASHITIXIANGBIAN。

  (3)DUIHANNAIMOBANGAOWENYINGLISHIXIAOYANGPINZHONGDETANHUAWUJUYOUCIXING,WEI0.234emu/g(WAIJIACICHANGQIANGDU1000OeSHI);MASHITIHETANHUAWUGONGTONGYINQILEGAOWENSHIXIAOS30432CHUXIANCIXING,QIZHONGQIANZHEZHANZHUYAOBUFEN。

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