UDIMET® Alloy R41 (UNS N07041) Product Introduction
UDIMET® alloy R41, designated as UNS N07041, is a high-temperature nickel-based superalloy known for its exceptional strength and corrosion resistance in extreme environments. This article provides a comprehensive introduction to UDIMET® alloy R41, covering its chemical composition, mechanical properties, performance at different temperatures, industry applications, shapes and sizes, production standards, welding and processing capabilities, advantages and disadvantages, and a comparison with similar alloys.
Thành phần hóa học
UDIMET® alloy R41 is primarily composed of nickel with significant additions of cobalt, chromium, tungsten, and molybdenum to enhance its mechanical and thermal properties:
| Yếu tố | Thành phần (%) |
|---|---|
| Niken (Ni) | 50.0 – 60.0 |
| Coban (Co) | 14.0 – 17.0 |
| Crom (Cr) | 15.0 – 18.0 |
| Vonfram (W) | 3,0 – 5,0 |
| Molypden (Mo) | 2.5 – 4.0 |
| Sắt (Fe) | 3,0 – 5,0 |
| Titan (Ti) | 1,5 – 2,5 |
| Nhôm (Al) | 0.1 – 0.5 |
| Boron (B) | 0.005 – 0.05 |
| Cacbon (C) | 0tối đa 0,05 |
Tính chất cơ học
UDIMET® alloy R41 exhibits excellent mechanical properties suitable for high-temperature applications:
| Tài sản | Giá trị |
|---|---|
| Độ bền kéo, ksi (MPa) | 150 – 180 (1034 – 1241) |
| Cường độ năng suất (bù 0,2%), ksi (MPa) | 110 – 140 (758 – 965) |
| Độ giãn dài (% tính bằng 2 inch) | 20 – 25 |
| Độ cứng, Rockwell C (HRC) | 35 – 40 |
Đặc tính hiệu suất
UDIMET® alloy R41 offers several performance advantages:
- High-Temperature Strength: Maintains excellent mechanical properties at temperatures up to 1000°C (1832°F), suitable for use in gas turbines and other high-temperature applications.
- Oxidation Resistance: Provides superior resistance to oxidation and corrosion in high-temperature and aggressive environments.
- Creep Resistance: Exhibits high creep resistance, making it ideal for components under constant stress at elevated temperatures.
Ứng dụng công nghiệp
UDIMET® alloy R41 is utilized in various demanding industries where high performance under extreme conditions is required:
| Ngành công nghiệp | Các ứng dụng |
|---|---|
| Hàng không vũ trụ | Gas turbine components including blades, discs, and seals. |
| Sản xuất điện | Turbine blades, combustion chambers, and heat exchangers. |
| Xử lý hóa học | Reactor vessels, pipelines, and valves for handling corrosive chemicals at high temperatures. |
Hình dạng và kích thước
UDIMET® alloy R41 is available in various forms and sizes to meet specific application needs:
- Các hình thức: Sheets, plates, bars, forgings, and wire.
- Kích thước: Thickness ranging from 0.5 mm to 100 mm for plates, and diameter ranging from 1 mm to 300 mm for round bars.
Tiêu chuẩn sản xuất
UDIMET® alloy R41 conforms to international production standards ensuring quality and reliability:
| Mẫu sản phẩm | Hình dạng có sẵn | Kích cỡ có sẵn | Tiêu chuẩn sản xuất |
|---|---|---|---|
| Tấm/tấm | Tấm, tấm | Thickness: 0.5 mm – 100 mm | ASTM B637, AMS 5764 |
| Thanh/Thanh | Thanh tròn, thanh vuông | Đường kính: 1 mm – 300 mm | ASTM B637, AMS 5764 |
| rèn | Blocks, Discs, Rings | Size: Customized | ASTM B637, AMS 5764 |
Hàn và Gia công
UDIMET® alloy R41 offers good weldability and processing characteristics:
- Hàn: Can be welded using methods such as TIG, MIG, and resistance welding. Preheating and post-weld heat treatment may be required to maintain properties.
- Khả năng gia công: Generally machined in the solution-annealed condition using carbide tools and appropriate cutting fluids.
Ưu điểm và nhược điểm
| Diện mạo | Chi tiết |
|---|---|
| Thuận lợi | Exceptional high-temperature strength and oxidation resistance, good creep resistance, and wide availability in various forms and sizes. |
| Nhược điểm | Higher cost compared to standard nickel alloys, requires specialized processing and handling due to its high strength and alloying elements. |
So sánh với các hợp kim tương tự
UDIMET® alloy R41 (UNS N07041) is often compared with other high-temperature nickel-based superalloys such as UDIMET® alloy 718 and UDIMET® alloy 720. Here’s a brief comparison:
| Loại hợp kim/Thuộc tính | Hợp kim UDIMET® R41 | UDIMET® alloy 718 | Hợp kim UDIMET® 720 |
|---|---|---|---|
| Thành phần hóa học | High nickel, cobalt, chromium, tungsten, molybdenum for high-temperature strength. | High nickel, chromium, and niobium with smaller additions of aluminum and titanium. | High nickel, cobalt, chromium, tungsten, molybdenum for high-temperature strength. |
| Tính chất cơ học | Higher tensile and yield strength, superior creep resistance at high temperatures. | Lower tensile and yield strength compared to UDIMET® alloy R41, good toughness and fatigue resistance. | Higher tensile and yield strength compared to UDIMET® alloy 718, excellent oxidation resistance. |
| Các ứng dụng | Gas turbines, aerospace components requiring high-temperature strength and oxidation resistance. | Aerospace components, high-temperature bolts, and fasteners. | Gas turbines, aerospace components requiring high-temperature strength and oxidation resistance. |
This detailed article introduces UDIMET® alloy R41 (UNS N07041), highlighting its chemical composition, mechanical properties, performance characteristics, industry applications, available forms and sizes, production standards, welding and processing capabilities, as well as advantages, disadvantages, and a comparison with similar alloys. Engineers and professionals seeking a high-strength, high-temperature superalloy for critical applications in aerospace, power generation, and chemical processing will find UDIMET® alloy R41 well-suited for use under extreme conditions.