scholarly journals FeAl Intermetallic Alloy: Its Heat-Resistant and Practical Application

2018 ◽  
Author(s):  
Janusz Cebulski ◽  
Dorota Pasek
Keyword(s):  
Intermetallic Alloy ◽  
Practical Application ◽  
Heat Resistant

IMPROVEMENT OF CASTING TECHNOLOGY AND COMPOSITION OF SINGLE CRYSTAL BLADES MADE OF HEAT-RESISTANT INTERMETALLIC ALLOY

2015 ◽  
Vol 0 (3) ◽  
pp. 1-1
Author(s):  
V.V. Gerasimov ◽  
◽  
N.V. Petrushin ◽  
E.M. Visik ◽  
◽  
...  
Keyword(s):  
Single Crystal ◽  
Intermetallic Alloy ◽  
Casting Technology ◽  
Heat Resistant

Using VPr11-40N Brazing Powder as a Wear-Resistant Cladding for GTE Blade Airfoils

2018 ◽  
Vol 284 ◽  
pp. 1257-1262
Author(s):  
V.G. Klimov ◽  
S.S. Zhatkin ◽  
A.V. Kogteva
Keyword(s):  
High Temperature ◽  
Abrasive Wear ◽  
Laser Cladding ◽  
Substrate Material ◽  
Intermetallic Alloy ◽  
Homogeneous Structure ◽  
Wear Resistant ◽  
Heat Resistant ◽  
Wear Tests ◽  
Better Than

This paper dwells upon using the VPr11-40N high-temperature brazing powder as a cladding applied by a laser to restore the height of the airfoil of a turbostarter blade in an NK-12MP turboprop, while also making the edge more wear-resistant. It has been found out that laser cladding generates a highly homogeneous structure with lesser gradient of hardness over the clad area compared to furnace brazing. Abrasive-wear tests have shown that this braze resists abrasive wear better than the blade substrate material (superalloy JS6К heat-resistant intermetallic alloy).

Effect of Thermohydrogen Treatment on the Manufacturing and Mechanical Properties of a Heat-Resistant VTI-4 Intermetallic Alloy

2019 ◽  
Vol 2019 (10) ◽  
pp. 986-993
Author(s):  
S. V. Skvortsova ◽  
O. Z. Pozhoga ◽  
A. V. Ovchinnikov ◽  
A. A. Orlov
Keyword(s):  
Mechanical Properties ◽  
Intermetallic Alloy ◽  
Heat Resistant

Progress In The Practical Application Of Automated Image Analysis To Tem Negatives

1977 ◽  
Vol 35 ◽  
pp. 214-217
Author(s):  
F. A. Heckman ◽  
E. Redman ◽  
J.E. Connolly
Keyword(s):  
Image Analysis ◽  
Image Quality ◽  
Exposure Time ◽  
Image Contrast ◽  
Automated Image Analysis ◽  
Practical Application ◽  
Factors Affecting ◽  
High Image Quality ◽  
Qualitative Evidence ◽  
Comprehensive Study

In our initial publication on this subject1) we reported results demonstrating that contrast is the most important factor in producing the high image quality required for reliable image analysis. We also listed the factors which enhance contrast in order of the experimentally determined magnitude of their effect. The two most powerful factors affecting image contrast attainable with sheet film are beam intensity and KV. At that time we had only qualitative evidence for the ranking of enhancing factors. Later we carried out the densitometric measurements which led to the results outlined below.Meaningful evaluations of the cause-effect relationships among the considerable number of variables in preparing EM negatives depend on doing things in a systematic way, varying only one parameter at a time. Unless otherwise noted, we adhered to the following procedure evolved during our comprehensive study:Philips EM-300; 30μ objective aperature; magnification 7000- 12000X, exposure time 1 second, anti-contamination device operating.

Fifth Edition: the New Standard

2000 ◽  
Vol 5 (6) ◽  
pp. 1-7
Author(s):  
Christopher R. Brigham ◽  
James B. Talmage ◽  
Leon H. Ensalada
Keyword(s):  
Musculoskeletal System ◽  
Medical Information ◽  
Objective Assessment ◽  
Scientific Data ◽  
Practical Application ◽  
Fourth Edition ◽  
Appropriate Use ◽  
Medical Evaluation ◽  
Single Set

Abstract The AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Fifth Edition, is available and includes numerous changes that will affect both evaluators who and systems that use the AMA Guides. The Fifth Edition is nearly twice the size of its predecessor (613 pages vs 339 pages) and contains three additional chapters (the musculoskeletal system now is split into three chapters and the cardiovascular system into two). Table 1 shows how chapters in the Fifth Edition were reorganized from the Fourth Edition. In addition, each of the chapters is presented in a consistent format, as shown in Table 2. This article and subsequent issues of The Guides Newsletter will examine these changes, and the present discussion focuses on major revisions, particularly those in the first two chapters. (See Table 3 for a summary of the revisions to the musculoskeletal and pain chapters.) Chapter 1, Philosophy, Purpose, and Appropriate Use of the AMA Guides, emphasizes objective assessment necessitating a medical evaluation. Most impairment percentages in the Fifth Edition are unchanged from the Fourth because the majority of ratings currently are accepted, there is limited scientific data to support changes, and ratings should not be changed arbitrarily. Chapter 2, Practical Application of the AMA Guides, describes how to use the AMA Guides for consistent and reliable acquisition, analysis, communication, and utilization of medical information through a single set of standards.

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