材料期刊网

DZ40M钴基合金的高温氧化

刘培生 , 陈国锋 , 梁开明

中国腐蚀与防护学报

测定了DZ40M钴基合金在900-1100℃空气中的氧化动力学曲线，观察分析了各温度下经不同时间氧化后合金的表面氧化物形貌和组成。该合金在900和1100℃的静态氧化较好地符合抛物线规律，而在1050和1100℃时由于氧化皮严重开裂和剥落而近乎呈直线发展。两者的氧化层形成机制有所不同，900和100...

关键词: 钴基合金 , DZ40M alloy , High temperature oxidation , null

Protective Effect of the Sputtered TiAlCrAg Coating on the High-Temperature Oxidation and Hot Corrosion Resistance of Ti-Al-Nb Alloy

Yanjun XI , Fuhui WANG , Lianlong HE

材料科学技术（英文）

The effect of a sputtered Ti-48Al-8Cr-2Ag (at. pct) coating on the oxidation resistance of the cast Ti-46.5Al-5Nb (at. pct) alloy was investigated in air at 1000~1100℃. Hot corrosion in molten 75 wt pct Na¬2SO¬4+25 wt pct K¬2SO¬4 was investigated at 900℃. The scale on the cast TiAlNb tends to spall ...

关键词: High temperature oxidation , null , null

DZ-40M 钴基合金低压气相沉积铝化物涂层的高温氧化行为

刘培生

中国腐蚀与防护学报

以新型定向凝固钴基合金DZ40M为基体，对其低压化学气相沉积铝化物涂层的高温氧化行为作初步探讨。结果表明，该涂层在900～1100℃的静态空气氧化过程中有一个平稳期，沉积渗剂中加入Ti及提高氧化温度均可加速涂层的氧化和退化，使平稳期提前结束。由于生成了θ-Al2O3，使得900℃时的氧化增重大于10...

关键词: DZ40M钴基合金 , Aluminide coating , High temperature oxidation

Protective Effect of the Sputtered TiAlCrAg Coating on the High-Temperature Oxidation and Hot Corrosion Resistance of Ti-Al-Nb Alloy

材料科学技术（英文）

关键词:

Oxidation Behevior of Pd-Modified Aluminide Coating at High Temperature

Mengjin LI , Xiaofeng SUN , Hengrong GUAN , Xiaoxia JIANG , Zhuangqi HU

材料科学技术（英文）

(Ni,Pd)Al coating, prepared by low pressure pack cementation on the Ni-base superalloy M38 where Pd-20 wt pct Ni alloy was predeposited, consists of a single β-(Ni,Pd)Al phase. The initial isothermal oxidation behavior of (Ni,Pd)Al coating was investigated by TGA, XRD, SEM/EDS at 800-1100℃. Results ...

关键词: (Ni , null , null , null , null