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microstructural analysis

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030211
EISBN: 978-1-62708-349-2
...Abstract Abstract Microstructural analysis of the composite matrix is necessary to understand the performance of the part and its long-term durability. This chapter focuses on the microstructural analysis of engineering thermoplastic-matrix composites and the influence of cooling rate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270141
EISBN: 978-1-62708-301-0
... well-defined chevron marks along the fracture surface that end in a shear lip on the convex side. Further examination using a SEM shows that the failure was due to overload. Based on these observations and the results of tensile testing and microstructural analysis, investigators concluded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270191
EISBN: 978-1-62708-301-0
...Abstract Abstract This report describes the failure of a gas turbine in a combined-cycle power plant and the examination and tests that were conducted to determine the cause. Based on microstructural analysis, hardness measurements, and tensile tests, the failure was attributed to inadequate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270031
EISBN: 978-1-62708-301-0
...Abstract Abstract This chapter discusses some of the more advanced methods and procedures used in failure analysis, including in-service material sampling, in situ microstructure analysis, and a form of punch testing that can determine the fracture toughness of any material from a tiny specimen...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270133
EISBN: 978-1-62708-301-0
...Abstract Abstract A second-stage compressor blade in an aircraft engine fractured after 21 h of service. The remaining portion of the blade was removed and examined as were several adjacent blades. Based on the results of SEM fractography, microstructural analysis, and hardness testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270165
EISBN: 978-1-62708-301-0
... surface and progressed circumferentially outward. Based on these observations and the results of SEM fractography and microstructural analysis, the fatigue cracking can be traced to insufficient fillet radius at the transition zone. crack initiation fatigue failure pressure impulse testing SEM...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410001
EISBN: 978-1-62708-265-5
... This chapter provides perspective on the physical dimensions associated with the microstructure of steel and the instruments that reveal grain size, morphology, phase distributions, crystal defects, and chemical composition, from which properties and behaviors derive. The chapter also reviews...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270067
EISBN: 978-1-62708-301-0
... measurements. fatigue fracture fractography microstructural analysis turbine blades Summary Background Pertinent Specifications Visual Examination of General Physical Features Testing Procedure and Results A low-pressure turbine rotor blade failed in service, causing extensive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270126
EISBN: 978-1-62708-301-0
... microstructural analysis visual examination Summary Background Visual Examination of General Physical Features Testing Procedure and Results A four-engine aircraft made a test flight after a number of rectifications and ground runs. After becoming airborne, a fire warning came on for one...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270087
EISBN: 978-1-62708-301-0
.... It includes images of the microstructure and fracture surfaces and explains what some of the details reveal about the failure. fatigue crack metallography microstructural analysis SEM fractography turbine blades Summary Background Visual Examination of General Physical Features Testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270095
EISBN: 978-1-62708-301-0
... failed due to overheating, possibly as a result of misalignment compounded by insufficient lubrication and high speeds. aircraft engine bearings high-temperature wear microstructural analysis visual examination Summary Background Visual Examination of General Physical Features...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270130
EISBN: 978-1-62708-301-0
.... microstructural analysis reaction control valve SEM fractography shutter bolts stress corrosion cracking Summary Background Visual Examination of General Physical Features Testing Procedure and Results Following an aircraft accident, it was found that the shutter bolts on the reaction control...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910475
EISBN: 978-1-62708-250-1
...Abstract Abstract This chapter discusses the techniques applicable to the diagnosis of corrosion failures, including visual and microscopic examination of corroded surfaces and microstructure; chemical analysis of the metal, corrosion products, and bulk environment; nondestructive evaluation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480141
EISBN: 978-1-62708-318-8
...× Fig. 7.26 Pure titanium tubing. Microstructure consists of alpha grains and titanium hydride (525 ppm). Etchant: 2%HF-4%HNO 3 . Original magnification: 250× Fig. 7.27 Ti-5Al-2.5Sn alloy. Alpha grains and titanium hydride (655 ppm) appear after heating at 815 °C (1500 °F) for ½ h and air...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850410
EISBN: 978-1-62708-260-0
... structure microstructural analysis quantitative fractography quantitative microscopy 6-1 Introduction Metallurgists have relied, in general, on qualitative descriptions of microstructures. Structural features are rated by comparison to charts describing many types of structural features. For some...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230199
EISBN: 978-1-62708-298-3
...Abstract Abstract This chapter explains how to safely prepare beryllium alloy samples for metallographic analysis. It describes grinding, polishing, and etching procedures in detail. It also discusses the identification of major and minor constituents and the general appearance of beryllium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460121
EISBN: 978-1-62708-285-3
.... , and A. Vogels B.P. , Use of Voigt Function in a Single-Line Method for the Analysis of X-Ray Diffraction Line Broadening , J. Appl. Crystallogr. , Vol 15 , 1982 , p 308 – 314 10.1107/S0021889882012035 5.24 Ghelichi R. and Bagherifard S. , Microstructural Characterization...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2016
DOI: 10.31399/asm.tb.ascaam.t59190147
EISBN: 978-1-62708-296-9
... constituents in the microstructure of cast aluminum-silicon alloys Table 4.2 Main morphological forms of phase constituents in the microstructure of cast aluminum-silicon alloys Equiaxed polygon Rounded particle Chinese script Irregular plates, branches Needles...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030067
EISBN: 978-1-62708-349-2
... technology, there is a need for the ability to perform microstructural analysis on titanium fastener/polymeric composite hybrid materials. Sample preparation and polishing of this type of hybrid material combination presents a challenge because the properties are quite different for each material...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130087
EISBN: 978-1-62708-284-6
... Material Characteristics That Can Contribute to Poor Response from Heat Treatment Component Characteristics What Are the Things That Can Go Wrong in the Heat Treating Process? For those who do failure analysis of heat treated steel parts, it is important to understand what microstructure...