Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Nickel-based single crystal blade performance evaluation method based on directly cut micro sample

A nickel-based single crystal and blade technology is applied in the direction of strength characteristics, the use of repetitive force/pulsation force to test the strength of materials, and measurement devices. It can solve the problems that cannot truly and accurately reflect service engine blades, and reduce test costs. The effect of true and accurate performance

Inactive Publication Date: 2019-07-16
NORTHWESTERN POLYTECHNICAL UNIV
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiency of the prior art that cannot truly and accurately reflect the performance of the engine blade in service, and provide a nickel-based single crystal blade performance evaluation based on directly cutting micro-samples that can truly and accurately reflect the performance of the engine blade in service method

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
  • Nickel-based single crystal blade performance evaluation method based on directly cut micro sample
  • Nickel-based single crystal blade performance evaluation method based on directly cut micro sample
  • Nickel-based single crystal blade performance evaluation method based on directly cut micro sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0034] In the fault diagnosis of aero-engines and the analysis of the causes of aircraft crashes, blade fracture is often the main reason. Due to the severity of the consequences of blade failure and the suddenness of failure, blade fracture has become one of the bottlenecks restricting the development and application of engines. In order to break through this bottleneck, in addition to improving the level of material product...

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 relates to the technical field of engines and provides a nickel-based single crystal blade performance evaluation method based on a directly cut micro sample. The nickel-based single crystal blade performance evaluation method based on the directly cut micro sample comprises the following steps: firstly obtaining an initial sample of a nickel-based single crystal blade; observing a first microscopic structure of the initial sample; performing a fatigue test on the initial sample under preset test parameters, thus a tested sample is obtained; observing a second microscopic structure of the tested sample; and according to the preset test parameters, the first microscopic structure and the second microscopic structure, evaluating performance of the nickel-based single crystal blade. Compared with the prior art, test cost is reduced, difference of microscopic structures of a material is considered, and performance of a service engine blade can be really and accurately reflected.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a method for evaluating the performance of nickel-based single crystal blades based on directly cutting miniature samples. Background technique [0002] Nickel-based single-crystal blades are the first key component of aero-engines, and they have been used in harsh environments of high temperature, high pressure and high speed for a long time. Under the coupled effects of multiple fields such as temperature field, flow field, and stress field generated by high-speed centrifugal force, it is easy to cause degradation of the blade material structure and performance. Therefore, it is particularly important to accurately evaluate the performance of nickel-based single crystal blades. [0003] The performance evaluation methods of nickel-based single crystal blades in the prior art cannot truly and accurately reflect the performance of engine blades in service. [0004] Therefore, i...

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
IPC IPC(8): G01N3/32G01N3/06
CPCG01N3/06G01N3/068G01N3/32G01N2203/0005G01N2203/0073G01N2203/0226G01N2203/0647
Inventor 温志勋岳珠峰蒋波程昊王昭晗许壮壮谷淑宁
Owner NORTHWESTERN POLYTECHNICAL UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com