Unlock instant, AI-driven research and patent intelligence for your innovation.

K4169 high-temperature alloy with increased boron content

A high-temperature alloy and element content technology, applied in the field of high-temperature alloy casting, can solve problems such as poor fluidity

Active Publication Date: 2014-07-16
NORTHWESTERN POLYTECHNICAL UNIV
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the shortcomings of poor fluidity in the prior art, the present invention proposes a K4169 superalloy with increased boron content

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • K4169 high-temperature alloy with increased boron content
  • K4169 high-temperature alloy with increased boron content
  • K4169 high-temperature alloy with increased boron content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This example is a formula that can improve the fluidity of K4169 superalloy, and its components are shown in Table 1:

[0020] Table 1

[0021] C(％)

[0022] The percentages are all percentages by mass.

Embodiment 2

[0024] This example is a formula that can improve the fluidity of K4169 superalloy, and its components are shown in Table 2:

[0025] Table 2

[0026] C(％)

[0027] The percentages are all percentages by mass.

Embodiment 3

[0029] This example is a formula that can improve the fluidity of the K4169 superalloy, and its components are shown in Table 3:

[0030] table 3

[0031] C(％)

[0032] ≤0.01

[0033] The percentages are all percentages by mass.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a K4169 high-temperature alloy with increased boron content. According to the K4169 high-temperature alloy, the flowability of the K4169 high-temperature alloy is improved by more than 30% by increasing the boron content. The K4169 high-temperature alloy comprises the following components by mass percent: 0.056% of C, 52.54% of Ni, 19.15% of Cr, 3.11% of Mo, 0.61% of Al, 0.94% of Ti, 0.0037%-0.0070% of B, 0.028% of Zr, 5.03% of Nb, 0.05% of Ta, 0.043% of Si, 0.0035% of Mn, 0.0018% of S, 0.0015% of P, not more than 0.01% of impurities and the balance of Fe.

Description

technical field [0001] The invention relates to the field of superalloy casting, in particular to increasing and controlling trace element boron to improve the fluidity of K4169 superalloy. Background technique [0002] High-temperature alloys are widely used in the field of aerospace, not only for the manufacture of turbine disks, alloy blades and various structural parts of engines, but also for large-scale structural castings in aero-engines. The output of K4169 (foreign alloy grade is IN718) superalloy has reached more than 50% of the total annual output of all superalloys, especially suitable for casting impellers, guide rings, diffusers, casings and others for aerospace engines working below 650 °C Structure. With the advancement of science and technology, the aviation industry is developing towards high performance and low cost. The cost and performance advantages of large thin-walled castings instead of assemblies make them widely used. However, in order to ensure ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05
Inventor 黄太文介子奇张军刘林张琰斌周伟傅恒志
Owner NORTHWESTERN POLYTECHNICAL UNIV