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Keywords: microhardness
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. January 2021, 143(1): 011007.
Paper No: MATS-19-1238
Published Online: September 22, 2020
... of Nd 2 O 3 promoted the formation of a uniform and refined microstructure of the cladding coatings, and a well-defined structure was obtained when the added Nd 2 O 3 content was 2 wt%. The microhardness of the cladding coating obviously improved by 3 to 4 fold above that of the Ti–6Al–4V substrate...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. October 2011, 133(4): 041002.
Published Online: October 13, 2011
... was made. X-ray diffraction analysis showed less decarburization of the nanocrystalline coating and a more homogeneous coating structure than the microcrystalline coating produced under the same spraying conditions. The mechanical assessment of the coatings was performed using microhardness and indentation...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Eng. Mater. Technol. April 2010, 132(2): 024501.
Published Online: February 17, 2010
... the outside after induction heating, larger fractions of martensite may be present in the outer surface of the tube than the inner surface due to differences in cooling rate. Figure 9 shows Knoop microhardness traverses through the thickness of the DP600, 12L, 12H, 19L, and 19H tube sets. Microhardness...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. January 2010, 132(1): 011012.
Published Online: December 1, 2009
.... The elastic-plastic response of the superficial layers affected by the shot peening treatments has been derived through reverse strain axial testing combined with microhardness tests and implemented in the FE model. The proposed numerical/experimental approach is able to satisfactorily predict the residual...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. January 2010, 132(1): 011011.
Published Online: November 5, 2009
... a midcourse between these two flow lines. A relationship between the local microhardness of the material and its flow stress was established and visioplasticity was employed for the determination of local strains in the deformation region. Data were obtained for six situations resulting from the combinations...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Eng. Mater. Technol. July 2007, 129(3): 446–452.
Published Online: January 4, 2007
... steels were welded with a 4 kW diode laser. Mechanical properties of welds and parent metals were assessed by tensile and limiting dome height tests, and related to microhardness distribution across the welds. The formability of HSLA welds was insensitive to the welding process and comparable...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. April 2006, 128(2): 225–233.
Published Online: June 21, 2005
.... alumina nanoporous materials thin films indentation porosity beams (structures) bending Vickers hardness elastic moduli crystallisation elasticity elastoplasticity microcracks scanning electron microscopy microhardness electrochemical synthesis ceramic porosity scanning electron...
Journal Articles
Publisher: ASME
Article Type: Article
J. Eng. Mater. Technol. April 2005, 127(2): 179–185.
Published Online: April 6, 2005
... testing, metallographic study, and microhardness measurement. In particular, circular TWBs with different radii and cutoff widths were designed where all the welds were located in the center of the blanks and perpendicular to the principal strain direction. Nd:YAG laser butt-welding was used to weld...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. October 2004, 126(4): 436–442.
Published Online: November 9, 2004
... pit or Λ) are known or vice versa are proposed. Corrosively Degraded SiCp/Al, Tensile Properties Regression Analysis Empirical Equation silicon compounds aluminium alloys particle reinforced composites microhardness Vickers hardness tensile testing tensile strength...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Eng. Mater. Technol. October 2004, 126(4): 353–359.
Published Online: November 9, 2004
...A. A. Elmustafa; A. A. Ananda; W. M. Elmahboub α-brass and aluminum microhardness and deep nanoindentation data when fitted to the Taylor dislocation-hardening (TDH) model produced a straight-line behavior consistent with the model. Literature data, including copper, silver, and tungsten when also...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Eng. Mater. Technol. January 2004, 126(1): 8–13.
Published Online: January 22, 2004
.... This is responsible for the failure upon tensile loading, and attributed to the loss of strength and ductility of the welded blank on a macroscopic scale. The welded blank showed lower strength and ductility than those of the base material, and the fracture occurred near the fusion line. The microhardness readings...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Eng. Mater. Technol. July 2003, 125(3): 333–340.
Published Online: July 10, 2003
... in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY . Manuscript received by the Materials Division March 12, 2002; revision received January 8, 2003. Associate Editor: M. Zhou. 12 March 2002 08 January 2003 10 07 2003 brittleness cracks microhardness ceramics reliability...