应用概况及特性:合金已用于制作先进航空发动机的高温部件。合金适于制作实际适于温度1000℃左右的涡轮转子和1050℃左右的导向叶片及其他高温零部件。
合金可以采用固相或气相渗Al以及气相物理沉积等工艺进行表面处理。合金在850℃和950℃经1000h暴露后,除Y相略有长大外组织保持不变,均未发现TCP相析出。
DD404 Similar brand: ReneN4 (USA)
Overview: DD404 is a nickel-based precipitation hardening type single crystal superalloy, belonging to the first generation of single crystal superalloy, the service temperature is below 1050℃. The alloy has good medium and high temperature properties, good oxidation resistance and corrosion resistance. The alloy has light specific gravity, low cost and good process performance. The main products are turbine rotors and guide blades.
DD404 Application profile and characteristics: The alloy has been used in the manufacture of high temperature components of advanced aeroengines. The alloy is suitable for making turbine rotors with a temperature of about 1000℃, guide blades with a temperature of about 1050℃ and other high temperature parts. Alloys can be surface treated by solid phase or gas phase Al infiltration and gas phase physical deposition. After the alloy was exposed to 850℃ and 950℃ for 1000h, the microstructure remained unchanged except that the Y phase grew slightly, and no TCP phase was found.
DD404 Chemical composition:
高温耐磨耐蚀合金(CoCrW,钴铬钨;stellite6/6B/6K等)
1,钴铬钨系列,CoCrW,stellite6,6B,6K等侧重高温耐磨的钴合金;
2,钴铬钼系列,CoCrMo,stellite21等侧重于高温耐腐蚀的钴合金.
1,哈氏合金 如:Hastelloy C276,C22,C4,C2000;Hastelloy B-2,B-3;
2,蒙乃尔合金 如:Monel 400,K500; Ni200(N6),Ni201(N4);
3,镍铬系列合金 如:Inconel600,Incoloy 800,Alloy20Cb等,
高温耐热合金(最高耐热温度可至1300℃的Haynes 747等)
1,高温耐热抗氧化合金:最高使用温度可至1300℃的Haynes 747等侧重于抗氧化的耐热合金;
2,高温耐热高强度合金:GH3030;GH3039;Inconel 718等侧重于高温高强度的耐热合金.
★ 高温耐磨耐蚀合金(CoCrW,钴铬钨,stellite6/6B/6K;CoCrMo等)
★ 高温耐腐蚀合金(Hastelloy,Monel,哈氏C276,哈氏B3等)
★ 高温耐热合金(Haynes,Inconel,Incoloy,Haynes 747等)
★ HAYNES 25(L605)超细丝(0.08-0.10mm)
执行标准ASTM B462-2002;ASTM B574-06;AMS 5894B
GB/T-14992-2005;GB/T-15007-2008
最大限度挖掘材料的潜力,使产品强韧均衡,综合性能卓越;
国家钢铁材料测试中心/国家钢铁质量监督检验中心权威检测,保证质量;
研发、推广高温,耐磨,耐腐蚀等复杂苛刻环境中使用的系列高温合金,提供锻棒,锻件,热轧棒板,焊丝,精密铸件,母合金,电极棒等;