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fracture surfaces

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Journal Articles
AM&P Technical Articles (2021) 179 (7): 46–49.
Published: 01 October 2021
...Louis G. Malito; Matthew L. Bowers; Paul L. Briant; Gabriel S. Ganot; Brad James Nitinol fatigue fracture surfaces generally exhibit similar features to most engineering alloys, including a flat fracture plane, ratchet marks, radial lines, beachmarks, and striations. Nitinol fatigue fracture...
Journal Articles
AM&P Technical Articles (2022) 180 (6): 30–31.
Published: 01 September 2022
...Shane Turcott Examining a failed part’s fracture surface is a great source of information as to why and how it failed. Examining a failed part’s fracture surface is a great source of information as to why and how it failed. Copyright © ASM International® 2022 2022 ASM International...
Journal Articles
AM&P Technical Articles (2023) 181 (4): 28–30.
Published: 01 May 2023
... is widely used (when sampling is permitted) for studying archaeometallurgical artifacts in detail. However, fracture surface examinations and analysis (i.e., fractography) can often provide even greater insight. Case studies demonstrate the benefits of employing fractographic analysis to study cracking...
Journal Articles
AM&P Technical Articles (2014) 172 (8): 18–22.
Published: 01 August 2014
... of steel screw failures highlights some of the critical manufacturing and design factors that affect fastener fatigue. Copyright © ASM International® 2014 2014 ASM International fastener fatigue fracture fracture surfaces threaded fasteners httpsdoi.org/10.31399/asm.amp.2014-08.p018...
Journal Articles
AM&P Technical Articles (2019) 177 (6): 23–24.
Published: 01 September 2019
... SEM analysis of a trailer hitch fatigue failure. Copyright © ASM International® 2019 2019 ASM International failure analysis fatigue fracture fracture surface scanning electron microscopy httpsdoi.org/10.31399/asm.amp.2019-06.p023 23 ADVANCED MATERIALS & PROCESSES | SEPTEMBER 2019...
Journal Articles
AM&P Technical Articles (2021) 179 (6): 13–18.
Published: 01 September 2021
... processes that result in microtexture formation. Copyright © ASM International® 2021 2021 ASM International deformation behavior fatigue properties fracture surfaces microstructural analysis microtexture titanium alloys AT IDTVAANNI UC EMD FMA TAITGEUR EI AALNSA&L YPSRI SO C E S S E S...
Journal Articles
AM&P Technical Articles (2020) 178 (2): 20–24.
Published: 01 February 2020
... 68 82 152 148 154 Avg. absorbed energy, J 75 151 Result Qualified 23 (a) (b) ADVANCED MATERIALS & PROCESSES | FEBRUARY/MARCH 2020 Fig. 6 (a) fracture position in weld joints in tensile tests and (b) SEM image of fracture surface. (a) (b) (c) (d) Fig. 7 (a) Macrostructures of impact test specimen...
Journal Articles
AM&P Technical Articles (2015) 173 (9): 32–33.
Published: 01 October 2015
... inspection and scanning electron microscopy/energy dispersive x-ray spectroscopy (SEM-EDS) were initially used to study the failed pin (Fig. 1). Longitudinal fracture surfaces are shown in Fig. 2, with blue arrows indicating the fracture origin region and white arrows indicating the cracking direction...
Journal Articles
AM&P Technical Articles (2019) 177 (8): 42–43.
Published: 01 November 2019
... lateral resolution (300 semiquantitative elemental analysis, and accurate chemical bonding information, including standardless semiquantitative analysis. It is useful Fig. 3 Auger electron spectroscopy of the fracture surface of an aluminum cold-sprayed coating (a) in the as-sprayed condition and (b...
Journal Articles
AM&P Technical Articles (2015) 173 (4): 24–27.
Published: 01 April 2015
... revealed that cracking occurred due to metal fatigue initiated at multiple locations on the fillet radii of two threads on the outside surface (Fig. 3). Fracture surfaces did not reveal any corrosion products, abnormal contact patterns, or temper colors, suggesting that component operating conditions...
Journal Articles
AM&P Technical Articles (2023) 181 (7): 40–42.
Published: 01 October 2023
... and to eventually pre- dict when fracture will occur. To this end, the team examined fa- tigue fracture surfac- es and compared the observed inclusions at fracture initiation sites with inclusions in the Nitinol material as measured by standard metallographic analysis. For the fatigue fracture Fig. 2 From left...
Journal Articles
AM&P Technical Articles (2019) 177 (8): 63–67.
Published: 01 November 2019
... the load for grain sizes larger than ASTM 7. Fracture surfaces for test-steel W from specimens austenitized at 850°C for two and 1000 seconds are compared in Fig. 6. For the 1000-second austenitizing time, the austenite grain size was 53 µm (ASTM 6.2) and the hardness was 61 HRC (711 HV). After...
Journal Articles
AM&P Technical Articles (2019) 177 (2): 16–21.
Published: 01 February 2019
... is increased over the Al alloy by 80% and 50%, respectively. SEM examination of the matrix of the fractured surface of Al-25% SiC shows a significant volume fraction of dimples in the fractured surface around the SiC particles. A similar fracture mode was observed in the Al-40% SiC composite. The matrix...
Journal Articles
AM&P Technical Articles (2016) 174 (1): 30–33.
Published: 01 January 2016
... consisted of Nitinol and stainless steel joined via a Nitinol hypotube and adhesive. The two designs were tested side-by-side comparing lateral stiffness, tensile strength, and simulated clinical performance in a 2D plate model emulating a tortuous vessel. After tensile testing, the fracture surface...
Journal Articles
AM&P Technical Articles (2022) 180 (1): 16–20.
Published: 01 January 2022
... OF A FRACTURED STRUCTURAL FILLET WELD The remnants of a fractured structural weld were provided for a forensic metallurgical examination. The analysis consisted of digital photography, high-resolution µCT scan of the weld locations, fractography of the fracture surface, and metallography to characterize the weld...
Journal Articles
AM&P Technical Articles (2016) 174 (4): 48.
Published: 01 April 2016
... and micropores, coating fracture surface, inclusions and other phases in the coating or substrate- add to a more complete understanding of the formed coating. coating interface This article series will explore the indispensable role of characterization in the development of cold spray coatings...
Journal Articles
AM&P Technical Articles (2022) 180 (3): 25–28.
Published: 01 April 2022
... for ultrasonic fatigue testing of metals (WES 1112:2017), which describes the theory and testing procedures in detail[3]. EXAMPLES Fig. 7 Fracture surface of SNCM439 sample. To demonstrate the technique, the staff of the Global Applications Develop- ment Laboratory of Shimadzu Corporation in Kyoto, Japan...
Journal Articles
AM&P Technical Articles (2013) 171 (10): 30–31.
Published: 01 October 2013
... 2008 Fracture surface at the drive-wheel side of a failed axle. Image is from the ASM Failure Analysis Center Online, featuring more than 1000 case histories plus the largest collection of failure analysis information available in any media. The database is easily searchable and covers more than 700...
Journal Articles
AM&P Technical Articles (2014) 172 (4): 19–23.
Published: 01 April 2014
... here. Ductile fracture toughness determination, such as the J-integral vs. crack growth resistance (J-R) curve, is a useful tool for evaluating a material s structural integrity in the presence of preexisting defects. The J-R curve can calculate the work (energy) per unit of fracture surface area...
Journal Articles
AM&P Technical Articles (2013) 171 (5): 29–32.
Published: 01 May 2013
... the overlap area (Fig. 10a and b and base metal at rivet (Fig. 10c Joints without adhesive showed base metal at rivet fractures (Figs. 11a and b). For LSPR lap joints that fractured in base metal at rivet, fatigue cracking initiated from the faying surfaces and propagated through the thickness of the base...