压力容器
壓力容器
압력용기
2013年
9期
1-10
,共10页
尹立军%寿比南%刘智勇%赵博%刘翔%杜翠薇%李晓刚
尹立軍%壽比南%劉智勇%趙博%劉翔%杜翠薇%李曉剛
윤립군%수비남%류지용%조박%류상%두취미%리효강
应变强化不锈钢S30403%应变强化不锈钢S31608%硫化氢%应力腐蚀开裂
應變彊化不鏽鋼S30403%應變彊化不鏽鋼S31608%硫化氫%應力腐蝕開裂
응변강화불수강S30403%응변강화불수강S31608%류화경%응력부식개렬
strain strengthening stainless steel S 30403%strain strengthening stainless steel S 31608%hydro-gen sulfide%stress corrosion cracking ( SCC )
用U型试样浸泡试验、慢应变速率拉伸试验,结合腐蚀形貌和断口形貌的扫描电子显微镜观察,在常温和-196℃下,分别研究了不同预变形量的S30403不锈钢和S31608不锈钢在H2 S介质中的应力腐蚀开裂( Stress corrosion cracking ,SCC)行为。研究表明:S30403不锈钢和S31608不锈钢在实验溶液中均有较强的SCC敏感性,S30403不锈钢的SCC敏感性高于S31608不锈钢;随着预拉应变量的增大,两种材料的SCC敏感性均呈现增大的趋势。在-196℃下应变强化处理的两种材料在H2 S环境中的SCC敏感性低于其在室温应变强化处理时的SCC敏感性,同时表现出更好的抗拉性能。
用U型試樣浸泡試驗、慢應變速率拉伸試驗,結閤腐蝕形貌和斷口形貌的掃描電子顯微鏡觀察,在常溫和-196℃下,分彆研究瞭不同預變形量的S30403不鏽鋼和S31608不鏽鋼在H2 S介質中的應力腐蝕開裂( Stress corrosion cracking ,SCC)行為。研究錶明:S30403不鏽鋼和S31608不鏽鋼在實驗溶液中均有較彊的SCC敏感性,S30403不鏽鋼的SCC敏感性高于S31608不鏽鋼;隨著預拉應變量的增大,兩種材料的SCC敏感性均呈現增大的趨勢。在-196℃下應變彊化處理的兩種材料在H2 S環境中的SCC敏感性低于其在室溫應變彊化處理時的SCC敏感性,同時錶現齣更好的抗拉性能。
용U형시양침포시험、만응변속솔랍신시험,결합부식형모화단구형모적소묘전자현미경관찰,재상온화-196℃하,분별연구료불동예변형량적S30403불수강화S31608불수강재H2 S개질중적응력부식개렬( Stress corrosion cracking ,SCC)행위。연구표명:S30403불수강화S31608불수강재실험용액중균유교강적SCC민감성,S30403불수강적SCC민감성고우S31608불수강;수착예랍응변량적증대,량충재료적SCC민감성균정현증대적추세。재-196℃하응변강화처리적량충재료재H2 S배경중적SCC민감성저우기재실온응변강화처리시적SCC민감성,동시표현출경호적항랍성능。
At room temperature and -196 ℃,stress corrosion cracking(SCC) behaviors of S30403 stain-less steel and S31608 stainless steel with different predeformations in acid H 2 S solution are investigated by slow strain rate test ( SSRT) and U-bent specimen test .The result shows that both S 30403 stainless steel and S31608 stainless steel are all easy to subject to SCC damage in H 2 S solution,the SCC susceptiv-ities of S30403 stainless steel are higher than these of S 31608 stainless steel;with the increase of prede-formations ,the SCC susceptivities of these two kinds of stainless steel increase ;these two kinds of stainless steel have lower SCC susceptivities and higher strength at -196 ℃.