W.S. Hu
,
T.F. Li and J.N .Shen (State Key Laboratory of Corrosion Science
,
Institute of Corrosion and Protection of Metals
,
Chinese Academy of Sciences
,
Shinnying 110015
,
China)
金属学报(英文版)
The oxidation behaviors of two kinds of low segregation Ht-Cr-Al based superalloys have been studied between 1000-1100℃, and compared with that of general Mt-Cr-Al based superalloys. The results indicated that the simultaneous additions of 0.1 wt% S and 0. 1 wt% Zr to low segregation alloys increase the oxidation rate of Al2O3-forming alloy and improve the scale adherence. The addition of 0.1 wt% Zr can ,minimize the negative effects of S on the adherence of Al2O3 scale. Low amounts of S(≤50 ppm wt) have no obviously negative effects on the adherence of Cr2O3 scale formed on one of the low segregation superalloys.
关键词:
: oxidation behavior
,
null
,
null
,
null
,
null
喻家庆
腐蚀科学与防护技术
在碳钢墓材上激光熔覆玻璃涂层及其物理化学行为研究喻家庆(中国科学院金属腐蚀与防护研究所九三届博士,沈阳110015)LASERCLADGLASSCOATINGSONSTEELSANDTHEIRPHYSICAL—CHEMICALBEHAVIORS$(AstractofDissertationforDoctorofEngineeringatInstituteofCorrosionandProtectionofMetals,TheChineseAcademyofSciences,Shenyang110015)b
关键词:
王振尧
,
郑逸苹
,
刘寿荣
中国腐蚀与防护学报
锌在ＳＯ_２污染环境中的腐蚀规律王振尧，郑逸苹，刘寿荣（中国科学院金属腐蚀与防护研究所沈阳１１００１５）１前言在我国西南地区，由于地理环境的影响，酸沉降日趋严重．含硫煤燃烧所排放的ＳＯ２造成雨水酸化，酸沉降引起的腐蚀问题受到人们关注．因此，在该地区进行材料的腐蚀研究具有重要的现实意义．ＳＯ。在高湿条件下对大多数金属和合金有强烈的加速腐蚀作用［１］．Ｓｈｅｒｒｙ等［２－４］就高湿条件下低浓度ＳＯ....
关键词:
null
,
Zinc
,
SO_2 polluted environment
LIU Zhonghao CHEN Lian Institute of Metal Research
,
Academia Sinica
,
Shenyang
,
China
金属学报(英文版)
Within the range of 77 to 295 K,the strength and plastieity of 18Ni maraging steel increase with decreasing temperature and decrease with increasing hydrogen content.The susceptibility to hydrogen embrittlement of the maraged specimens is superior to solid solution ones.The dislocations after plastically deforming will tangle into dislocation cells which reduce thermselves in size as the temperature decreases,and coarsen as the hydrogen content in- creases.No cryogenie deformation twin was found.The tensile fracture surfaces of the solu- tion and maraged specimens containing 5.90 ppm hydrogen under 295 to 223 K are revealed as quasi-cleavage and intergranular features respectively and as transgranular ones under other experimental conditions.The influence of hydrogen on the mechanical behaviour of steel and the mechanism of hydrogen induced deformation and fracture are discussed. Research Assistant, Institute of Metal Research,Academia Sinica, Shenyang 110015,China
关键词:
maraging steel
,
null
,
null
,
null
彭晓
腐蚀科学与防护技术
若干金属体系的氧化及内氧化的微观结构与机制研究彭晓(中国科学院金属腐蚀与防护研究所九五届博士研究生,沈阳110015)采用OM、SEM/EDS、TEM及HREM等手段观测金属氧化膜或内氧化层,对研究体系的氧化及内氧化的微观机制进行了详细探讨。在金属氧化方面,主要研究活性元素对金属氧化行为的影。研究的体系及主要结果如下。(1)Ni-La2O3复合镀层的氧化。用La2O3随Ni共电沉积的方法,制备了Ni-La2O3型复合镀层。通过对该复合镀层的微观?...
关键词:
黄彦良
,
曹楚南
,
吕明
,
林海潮
腐蚀科学与防护技术
指数律衰减电流极化电位响应的解析及其在测定金属的瞬时腐蚀速度方面的应用黄彦良,曹楚南,吕明,林海潮(中国科学院金属腐蚀与防护研究所腐蚀科学开放研究实验室、沈阳110015)发表于《腐蚀科学与防护技术》,1992;4:264.获中国腐蚀与防护学会第三届全国青年腐蚀科技论文讲评会优秀奖黄彦良,1996年3月生于辽宁省法库县,1983年考入西安交通大学材料科学与工程系金属材料及热处理专业学习.1990年6月获该校硕士学位,同年考入中国科学....
关键词:
魏学军
腐蚀科学与防护技术
腐蚀疲劳裂尖形变与载荷间交互作用魏学军(中国科学院金属腐蚀与防护研究所九七届博士研究生,沈阳110015)腐蚀疲劳过程由材料局部腐蚀行为、形变方式及它们之间的交互作用控制.本文原位测量了常幅疲劳裂纹扩展过程中一个循环周期内裂尖形变的规律;研究了氢脆和阳极溶解对金属材料裂尖形变的影响,并比较了这两种腐蚀因素对裂尖内部形变与表面形变影响的差别.结果表明:由于裂纹闭合和残余压应力的存在,疲劳裂尖塑性区尺寸与外加载....
关键词:
