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Effect of Heat Treatment on Corrosion Performance of Duplex Steel COR 25李冬贵,J.P.Simpson,R.Schenk摘 要:<正> The effect of heat treatment on the corrosionperformance of austenitic-ferritic duplex stain-less steel COR 25 in aqueous solution containing60%H3PO4+4%H2SO4+1500 ppm Cl- at 95℃ was in-vestigated.When the solution temperature wasincreased from......
Electrochemical Corrosion Behavior of the Laser Continuous Heat Treatment Welded Joints of 2205 Duplex Stainless Steel刘和平,金学军School of Materials Science and Engineering,Shanghai Jiao Tong University摘 要:The electrochemical corrosion behaviors of the welded joints of 2205 duplex stainless steel with the laser continuous heat treatment were investigated......
Influence of Treatment Sequence on Tribological Performance of Duplex Surface-Treated AISI 1045 SteelFarahnaz Haftlang1,Ali Habibolahzadeh21. School of Metallurgy and Materials Engineering, College... steel specimens was modified via two duplex surface treatments of(i) titanium diffusion coating followed by plasma nitriding(Ti–PN) and(ii) plasma nitriding followed by titanium diffusion coating(PN......
成的球状团簇. 表2 W-C薄膜HFCVD处理工艺参数 Table 2 Experimental parameters used for HFCVD treatment on W-C films 图6 7.0 kPa时Ⅰ号样品的SEM像 Fig.6 SEM images of sampleⅠgrown by HFCVD...文章编号:1004-0609(2011)11-2825-13 热丝辐射距离和W-C梯度过渡层对 高速钢基体气相生长的影响 魏秋平1, 2, 余志明1, 陈 中1, 朱笑东1, 刘培植1 (1. 中南大学 材料科学与工程学院, 长沙 410083;2. 中南大学 粉末冶金国家重点实验室,长沙 410083) 摘 要:使用反应磁控溅射技术在W18Cr4V高速钢基体表面制备W......
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时效处理对2205双相不锈钢耐点蚀性能的影响范君伟1,何晨冲1,李杰1,严彪1,杜春风1(1.上海市同济大学材料科学与工程学院上海市金属功能材料开发应用重点实验室)摘 要:通过研究时效热处理对2205双相不锈钢耐点蚀性能的影响,发现590℃和650℃的时效处理降低了材料的耐点蚀性能,并且耐点蚀性能随着时效温度和时效时间的增加而降低;点蚀蚀孔倾向于在铁素体和奥氏体的相界处以及铁素体中的析出相附近形核长大.此外,通过TEM物相分析发现590℃时效析出相有R相,650℃时效析出相有R相和σ相.关键词:2......
对750℃不同热处理时间2205双相不锈钢析出相的定性定量分析缪乐德1,张毅1,王国栋1,王治宇1,邬君飞1(1.上海市宝山钢铁股份有限公司)摘 要:经过等温热处理,双相不锈钢中铁素体在向奥氏体转变的过程中通常会形成碳化物相,金属间相,氮化物析出相等.这些析出相在合金中形成将导致不锈钢的脆化,显著降低钢的塑性,韧性和耐蚀性.为了对750℃不同热处理时间双相不锈钢析出相做定性定量分析,本实验首先研究了不同电解体系下双相不锈钢的电解效果,在选择好合适的电解液后,利用电解分离方法将析出相从基体中分离.通过扫描电镜(S......
smaller[18]. Fig.5 Polarization curves of AZ91D magnesium alloy substrate(a), substrate with Ni-P coating(b) and Ni-P/Ni-W-P duplex coating(c) in 3% NaCl aqueous solution Table 4 Corrosion... Deposition of electroless Ni-P/Ni-W-P duplex coatings on AZ91D magnesium alloy CHEN Xiao-ming(陈晓明), LI Guang-yu(李光玉), LIAN Jian-she(连建设) Key Laboratory of Automobile Materials, Ministry......
σ-Phase in Lean Duplex Stainless Steel SheetsMarco Breda1,Massimo Pellizzari21. Industrial Engineering Department(DII),University of Padova,Via Marzolo 9,Int.4,35131 Padua,Italy2. Industrial... duplex stainless steels(lean DSS)were examined after aging the materials at 800 ℃.Owing to the instability of ferrite,all DSS are known to be sensitive to solid-state phase transformations......
时效条件下2205双相不锈钢中的析出相分析及其对冲击性能的影响丁秀平1,刘雄1,何燕霖1,宋红梅2,胡锦程2,李麟0(1.上海市上海大学材料科学与工程学院2.宝山钢铁股份有限公司 技术中心,上海 200431)摘 要:研究采用光学显微镜(OM),扫描电镜(SEM),能谱分析(EDS)和透射电镜(TEM)等试验技术,分别对2205双相不锈钢在700,750℃时效处理0.5,12,h后组织中的析出相进行分析.结果表明:在700℃时效处理的条件下,2205双相不锈钢的析出相主要是Cr2N和χ相;750℃时效处理的条件......