2205双相不锈钢在酸性H2S环境下的应力腐蚀行为及开裂机理研究

_{摘要:采用C型环实验研究了2205双相不锈钢在饱和H2S环境下的应力腐蚀行为及开裂机理。研究结果表明,2205双相不锈钢在NACE标准A溶液中有良好的抗应力腐蚀能力。通过OM}、_{SEM、EDS及电化学手段分析得出2205双相不锈钢的应力腐蚀开裂经历了表面点蚀,蚀坑形成,H2S解离,H原子吸附并从蚀坑位置扩散进入金属基体,在金属基体中聚集,通过氢致开裂机制导致裂纹萌生,并逐渐扩展。}     

金属学报第6卷分类索引

采口及选盛冲击凿人的波动理豁分析····································································,················一(l)王增图:希磨矿机的临界娜速·····················,,············································,1······,···············……(23)卢寿慈:氧化物矿物与几个浮选滴剂的作用及矿物表面电性盾的影响···········。…     

等离子喷涂制备MoSi<sub>2</sub>-CoNiCrAlY复合涂层的高温氧化行为

以高能球磨法制备的纳米MoSi<sub>2</sub>-CoNiCrAlY复合粉末为喷涂材料,利用等离子喷涂技术在GH4169合金表面沉积了MoSi<sub>2</sub>-CoNiCrAlY复合涂层,并研究了GH4169基材和复合涂层合金试样在900°C静态大气环境下的循环氧化行为。结果表明：复合涂层表现出较好的抗高温氧化性能,其氧化速率仅为1.23×10<sub>-7</sub> mg<sub>2</sub>.cm<sub>-4</sub>.s<sub>-1</sub>,这归因于MoSi<sub>2</sub>在氧化早期形成了SiO<sub>2</sub>相,可以自封氧化膜。氧化后期SiO<sub>2</sub>的脱落,Mo<sub>5</sub>Si<sub>3</sub>相的再次氧化生成MoO<sub>3</sub>和MoO<sub>2</sub>气相,以及MoSi<sub>2</sub>的内氧化直接气化,会降低涂层的抗氧化性能。     

《上海金属》(钢铁分册)第十卷(1988年分类总目次)

综合评述上海俐铁工业在‘七五,后期的技术进步···································,··············~·················……顾箱吸略论轧铭技术新趋向····························································································……林万吸连续铸俐技术的发展与展望············“·························…     

金属学报第6卷目录

冲击凿人的波动理瑞分析,4····················1···································································……徐小荷(1)黑编矿浮选工艺因未的枕熟研究·············································,,·······················……胡为柏、卢租禧(14)瀚磨矿机的临界稗速······················4··················…     

《国外金属热处理》1989年总目录

新年祝词··························································································……I(4)甚础理论钢铁结构分析与穆斯堡尔率应〔日〕·························································……l(54)高纯铁经离子束氮化表面的结构和形貌〔德〕··········································……,’’W(26)综…     

《焊接》杂志1971年总目录

第1期沿着毛主席革命路线胜利前进 ·········……《人民日报》、《红旗》杂志、《解放军报>一九七一年元旦杜论用毛泽东思想统帅一切无往而不胜····································……上海汽轮机厂转子焊接组粉末等离子弧堆焊·································································一机部石油机械研究所大型汽轮机转子焊接······································…     

金属学报第28卷A辑1992年总目次

A辑第1期A120CuZMn3相中孪晶的高分辨电子显微术研究·········································,·····……李春志王顺才金延(AI)NITi形状记忆合金的相变温度滞后·········~·······~·······························……秦桂英俞学节金恒王景成(A6)冷加工和热处理对Nb及Nb合金弹性性能的影响··································································…     

2005年总目次

2005年第1期 综合评述 快淬双相纳米复合稀土永磁材料的晶化研究·····································································……王占勇，周邦新，徐晖等(l) 贵金属二次资源的回收利用现状和无害化处置设想········································································……周全法，尚通明(7) 热电材料研究进展·······················…     

《轻合金加工技术》1983年1—12期总目录

轻合金熔铸工艺与设备 题名期号起页不溶于铝的元素对钦细化铝晶粒效果的影响···············································4······~...……124铝铸造火焰加热炉的节能措施·························4··············,···……21电磁流槽式铝反射炉搅拌装置········4,·········、··……,..············……27铝合金熔体的运动和铸锭组织的形成····························…