Analysis of Hall-Petch Type Relationship in Some FCC Metals and Alloys (Record no. 14783)

MARC details
000 -LEADER
fixed length control field 02432nam a22001697a 4500
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 620.112 91
Item number P188A
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Panchal, Mahesh
245 ## - TITLE STATEMENT
Title Analysis of Hall-Petch Type Relationship in Some FCC Metals and Alloys
Statement of responsibility, etc by Mahesh Panchal
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication IIT Jodhpur
Name of publisher Department of Metallurgical & Materials Engineering
Year of publication 2020
300 ## - PHYSICAL DESCRIPTION
Number of Pages xvi,40p.
Other physical details HB
520 ## - SUMMARY, ETC.
Summary, etc Polycrystalline aggregates consist of grains and grain boundaries and Plastic flow in polycrystals differ substantially from that of single crystals as some grains are oriented more favourably than others for effecting dislocation glide because there occurs a change in the orientation between different grains at the grain boundaries. So, these grain boundaries impart restrictions to the dislocation motion that leads to the greater strengths of polycrystals relative to single crystals, and the strengthening caused by the presence of grain boundaries is expressed by well-known Hall-Petch (H-P) relationship. The Hall-Petch relation is not just applied to the yield strength with the grain size but can also be applied to the flow stress at a different level of strain. The possible way to relate the flow stress with the grain size at different strain level is through the change in Hall-Petch parameters. Several models have been proposed in support of Hall-Petch relation but the significance of Hall-Petch parameters that keep the Hall-Petch relationship valid under the varying substructure with the level of deformation has not been properly understood. As these Hall-Petch parameters can be related to the grain interior and grain boundary strengthening and their variation can be related to the microstructural changes taking place in the respective region. In the present work variation in Hall-Petch parameters with strain is investigated for some FCC materials. Also, the variation in the dislocation density with strain is seen in the grain interior and grain boundary regions and the effect of their variation on the microstructural changes is discussed. Through this work, it was observed that the frictional stress increases in all the cases whereas in case grain boundary resistance three different behaviours were observed.<br/>
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Hall-Petch Type Relationship
Topical Term MTech Theses
Topical Term Department of Metallurgical & Materials Engineering
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Kashyap. B.P.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Thesis
Holdings
Withdrawn status Lost status Damaged status Not for loan Collection code Permanent Location Current Location Shelving location Date acquired Full call number Accession Number Price effective from Koha item type
      Not For Loan Reference S. R. Ranganathan Learning Hub S. R. Ranganathan Learning Hub Course Reserve 2024-02-05 620.112 91 P188A TM00197 2024-02-05 Thesis