Inconel751合金是IneonelAlloyX-750合金的改进版，增加了AI的含量，提高了持久强度，该合金是一种由AI、T、Nb强化的镍基合金，具有良好的耐蚀性和抗氧化性，并具有较高的热硬度，主要用于航空和工业燃气轮机部件。由于其高温强度高、高温耐蚀性和耐磨性优良，这种合金在国外已用于制造高负荷内燃机气门等部件。
Inconel751 alloy is an improved version of the Inconel AlloyX-750 alloy, which increases the content of Al and enhances the endurance strength. This alloy is a nickel based alloy reinforced by Al, Ti, and Nb, with good corrosion resistance and oxidation resistance,
as well as high thermal hardness. It is mainly used in aviation and industrial gas turbine components. Due to its high-temperature strength, excellent high-temperature corrosion resistance, and wear resistance, this alloy has been used abroad to manufacture components such as valves for heavy-duty internal combustion engines
该合金主要用于内燃机的排气阀门和制造航空发动机工作温度在540°C以下的耐腐蚀的平面波形弹簧、周向螺旋弹
簧、螺旋压簧、弹簧卡圈和密封圈等零件。
This alloy is mainly used for exhaust valves of internal combustion engines and for manufacturing corrosion-resistant flat waveform springs, circumferential spiral springs, spiral compression springs, spring clips, and sealing rings for aviation engines with operating temperatures below 540C.
| 元素 | C | Si | Mn | P | S | Ni | Cr |
| 质量分数% | 0.03-0.10 | ≤0.50 | ≤0.50 | ≤0.015 | ≤0.015 | 余 | 14.0-17.0 |
| 元素 | MO | Nb | Cu | Al | Ti | Fc | |
| 质量分数% | ≤0.50 | 0.70-1.20 | ≤0.30 | 0.90-1.50 | 2.00-2.60 | 5.00-9.00 |
| 温度 | 屈服强度 | 抗拉强度 | 伸长率 | 收缩率 | 硬度 | |||
| 华氏度 | 摄氏度 | Ksi | Mpa | Ksi | Mpa | % | % | |
| 室温 | 室温 | 141.5 | 976 | 190.0 | 1310 | 22.5 | 38.2 | 352 |
| 1200 | 649 | 128.9 | 889 | 159.6 | 1100 | 22.5 | 32.1 | 291 |
| 1350 | 732 | 113.5 | 783 | 124.8 | 860 | 18.5 | 25.7 | 235 |
| 1500 | 816 | 76.3 | 526 | 80.3 | 554 | 26.0 | 35.9 | 173 |
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