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。     

《锻压机械》一九六八年全年总目录

—第1期— 毛主席最新指示················································……(l) 迎接无产阶级文化大革命的全面胜利 《人民日报》、《红旗》杂志、《解放军报》社论”·“····”·“··“”·“一(8)自动油压机··············································································……(7)油压无声铆钉机···································…     

《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··················…     

《轧钢》总目录

1986年第一期全国中小轧机技术改造会议在京召开··,~··,··‘·············一············~····一··········,·······“····“一本刊特约通讯员(川差动调速小型连轧机··············””···········4··””····一·······················,·-······~二张浩吕维松江树声(9)热弯拓宽轧制“··“·······一···························一·············4··”····一…     

《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··································································…     

物理测试1990年总目录

妮对共析轨俐动态再结晶的影响·······,···········,···,·································……藏尔寿张厚君(卜l) 晶粒不均匀性评价方法的探讨····································,···········……马茂元常铁军谷照国(卜5) 钢中硫磷硼碳的离子探针定量测定方法研究······················································……游俊富(1~7) 精确测定金属线材伸长率的新方…     

焊接学报 第12卷 1991年 总目次

第1期焊条熔滴过渡形态分析 ”········,·············································································································一王宝陆文雄(1)冷压焊中原子扩散行为的试验研究 ······“····……’·················································································…     

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·······················…     

《电加工》一九八○年总目录

页40 51 7 14 24 38 44 n28“49 1 6 20 24 31 47 1 5 19 3747(一)电火花加工题目喷丝板异形孔的电火花加工—扁丝电极组合穿孔工艺···························……2微型电子计算机在电火花加工中的应用················································……2关于放电加工中材料蚀除机理的新理论················································……3D61125大型电火花成型机床的设计·········…     

TiAl合金表面阴极微弧沉积Al<sub>2</sub>O<sub>3</sub>陶瓷涂层的生长过程与相组成

目的：利用阴极微弧沉积技术在预处理后的TiAl合金表面制备了Al<sub>2</sub>O<sub>3</sub>陶瓷涂层,研究了涂层的生长过程和相组成。方法：采用电子扫描电镜(SEM、EDS)、电子透射电镜(TEM)、X射线衍射(XRD)等方法,对Al<sub>2</sub>O<sub>3</sub>涂层的生长过程中的微观形貌、组织成分以及晶体结构的演变进行了研究与分析。结果：TiAl合金表面阴极微弧沉积过程中,在阴极表面发生非晶态Al(OH)<sub>3</sub>的吸附、脱水烧结形成Al<sub>2</sub>O<sub>3</sub>陶瓷涂层的沉积。结论：Al<sub>2</sub>O<sub>3</sub>涂层生长分前期Ⅰ、中期Ⅱ和后期Ⅲ三个阶段,前期起弧阻挡层被击穿,涂层生长较慢、组织致密且与基体结合良好;反应中期涂层生长较快,Al(OH)<sub>3</sub>不断吸附和脱水烧结,涂层结晶度提高;反应后期涂层生长速度变缓,表层组织疏松、多孔,相组成为87.5 %的α–Al<sub>2</sub>O<sub>3</sub>和12.5 %的γ–Al<sub>2</sub>O<sub>3</sub>。     

《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····························…     

《铸造机械》一九六九年总目录

第一、二期(总第19、20期)在中国共产党第九次全国代表大会上的报告····································……林彪(1)中国共产党章程··············································································……(1的工人没爵院就是好 —青岛铸造机械厂工人掌管科技大权调查报告························……(22)高举毛泽东思想谭大扛旗,工人当家敢想敢干得胜利 —新型旧砂气力吸送…     

1987年总目录

专题研究上限法在近似应力计算中的应用········,·································……李名尧、王学文(1.1)用初始解修正法解轴对称压缩和挤压问题···················一陈立峰、,区静远、赵新怀(1.7)反挤压四模型腔压力的实验研究···········································一上学文、一五从军(2 .1)一种确定冲裁模刃口尺寸的新方法···········································…     

1985年总目录

综述钢的渗碳与强韧化(下)···························……‘二‘’‘·”‘·“”‘’·““”’“’‘”’‘’‘”·‘’·…’二‘·’“·’二”·‘”l一1冷挤压金属模材料和真空热处理(日卜··········································……~········、、,··········,··……2一1对渗碳齿轮表面层标准的理解(英卜···········································,···············…     

《上海金属》1991年第13卷分类总目次

题目作者期九十年代上海地方钢铁工业发展的思考(待续).·············……八·····……顾德骥1九十年代上海地方钢铁工业发展的思考(续一)..·························……顾德骥2九十年代上海地方钢铁工业发展的思考(续完)..·························……顾德骥3 综合评述我国耐火材料的发展趋势········,··················..··························一陆家孜2花岗岩砖及其制造技术···········…