完成紧固功效的金属紧固件种类能够或许说八门五花，针对差别情况工况须要接纳差别材料差别工艺的紧固件，此中紧固件出格是金属材料紧固件的侵蚀一向是须要重点存眷和处理的，上面针对紧固件面对的侵蚀题目连系出格合金材料挑选予以扼要申明。

金属紧固件应力侵蚀开裂（SCC）

DANGSHANGMIANLIANGGESHENFENTONGSHICHANSHENGSHI，HUICHANSHENGYINGLIQINSHIKAILIE(JIANCHENGSCC)：

1、LAYINGLI（JIANJIESHIJIACHANSHENGDEHUOSHENGYUYINGLICHANSHENGDE）

2、QINSHIXINGQINGKUANG，RUYANSHUIHUOSUAN

DUIYUYINGLIQINSHIKAILIEDELASHOUJUBUSHI，TANENGGOUHUOXUCHANSHENGZAINUANHEDESUANXINGQINGKUANGZHONG，FANSHIDUICAILIAOJIJINBUYINGXIANG。ZHIYAOYINGLIHEQINSHIXINGJIEZHIDELIANXINENGLIZHISHIKAILIEDECHANSHENG——ZHEILIANGGESHENFENDOUBIXUCUNZAINENGLICHANSHENGKAILIE。YOUYUDAJUBUWAIBIAOWEIBEIZHANJIE，CHUYIXIEMIAOXIAODELIEWEN，CAILIAONENGGOUHUOXUKANQILAIBUZAODAOHUISHANG--JINSHUFANSHIJIANCHILIANGGUANGHEGUANGMANG--ZHISHIZHEILEILIEWENZAIBUCEMAOBINGCHANSHENGZHIQIANMEIFABEIJIANCEDAO。

JINSHUJINGUJIANCAILIAODETIAOXUANSHENMING：

NIEHEJINJINGUJIANDEYINGLIQINSHIKAILIECHANSHENGZAISANZHONGQINGKUANGZHONG：DIWENLUSULIZIRONGYE、DIWENSHUIHEDIWENJIANXINGQINGKUANG。

C276CAILIAOJUBEIYOULIANGDEKANGYINGLIQINSHIKAILIEJINENG，HEYONGYUSUANXING、FUYUANXINGHEQINGDUYANGHUAQINGKUANG。MENGNAIERCAILIAODEJINGUJIANBIMIANDADADOUXINYINGHECAICHANYONGSHUIZHONGDEYINGLIQINSHIKAILIEHEDIANSHI；ZAILAOGUDEYANSHUIQINGKUANGZHONGOURANHUICHANSHENGLIEFENGHEDIANSHI。al-6xnDEGAONIEHEGAOMUHANLIANGSHIQINENGGOUHUOXUDIDANGLVHUAWUZHONGDEYINGLIQINSHIKAILIE。

金属紧固件被点蚀

DIANSHIZHEISHIYIZHONGJIQIJUBUDEQINSHI，ZHISHICAILIAOSHANGCHANSHENGXIAOKONG。YIDANCHANSHENGDIANSHI，TANENGGOUHUOXUMINJIEFENSANDAOCAILIAOZHONG，WANZHENGQINSHITA。XIANGYIGEYOUDONGDEYACHI-NEIBIANYOUYIGEXIAODEQINSHIDIAN，NENGGOUHUOXUSHUZHANDAONIDEYACHI。DIANSHIFANSHISHIzuiJUFENSUIXINGDEQINSHIQINGSHI，YESHIZUINANJIANCEDEQINSHIQINGSHI，YOUYUZHISHICHUSHIQINSHIDEDIANSHIFANSHIHENXIAO，DANQINSHIHENSHEN。

DANGDUNHUACENGZHONGCUNZAIRUANRUODIANSHI，FANSHIHUICHANSHENGDIANSHI。DIANSHISHOUYAOSHOUSUAN、LVHUAWUHEDIWENDEYINGXIANG。LVHUAWUDUIJINSHUDEYANHUXINGDUNHUACENGCHUGEWUHAI，SHIYIDIANSHINENGGOUHUOXUZAIYANGHUAWUDUANLIECHUJIFA。

HEJINCAILIAODETIAOXUANSHENMING：

l-6xnSHIBIMIANLVHUAWUQINGKUANGZHONGDIANSHIDEBAOFUTIAOXUAN。TAIHEJINZAIHAISHUIZHONGJINPAODUONIANHOURENGBUDIANSHIDEJIXIANG。