Zobrazeno 1 - 10
of 20
pro vyhledávání: '"K. J. L. Iyer"'
Publikováno v:
Journal of Alloys and Compounds. 364:295-303
The elemental additions to Nd-Fe-B for the simultaneous enhancement of the Curie temperature (TC), intrinsic coercivity (Hci), remanence (Br) appear to be the viable option for improving the temperature stability of the magnetic properties. In this w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::608f99d2176091e94aa96a0f573ed586
https://doi.org/10.1016/s0925-8388(03)00541-3
https://doi.org/10.1016/s0925-8388(03)00541-3
Autor:
V.M. Radhakrishnan, S. Sundararajan, Ramaswamy Narayanan, K. J. L. Iyer, K. Y. Sastry, S.K. Seshadri, C. R. Shamantha, S. Sundaresan
Publikováno v:
Materials Science and Technology. 19:375-381
The stress corrosion characteristics of 18 wt-%Ni (MDN-250) maraging steel and its weldments made under different welding conditions have been investigated. The threshold stress intensity factor K ISCC in stress corrosion conditions has been determin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ac5305d6d076adbec10e682ad3b4cb0
https://doi.org/10.1179/026708303225010632
https://doi.org/10.1179/026708303225010632
Publikováno v:
Journal of Applied Physics. 92:6082-6086
This study describes the relative effect on the permanent magnet characteristics viz. remanence (B r), intrinsic coercivity (H ci), Curie temperature (T C), rectangularity of the intrinsic demagnetization curve, when Al, Cu, Ga, Nb are added individu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42263571d6e537a2180467d905e1aac6
https://doi.org/10.1063/1.1513879
https://doi.org/10.1063/1.1513879
Publikováno v:
Journal of Materials Engineering and Performance. 10:556-566
Structure and mechanical properties of two copper bearing high-strength low-alloy steels (HSLA)—one similar to HSLA 80 and the other to HSLA 100—are studied in different aging conditions. Elemental copper precipitates of nanometer size have been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f67cd9243b8f86fb3067c5508900e11
https://doi.org/10.1361/105994901770344700
https://doi.org/10.1361/105994901770344700
Publikováno v:
Journal of Materials Science. 36:5903-5907
Sintered samples of (Nd14.9 Dy1.9) (Fe65 Co8 Cu1.0 Ga1.0 Nb0.7)B7.5 were prepared and subjected to stepwise annealing in the temperature range 875 K–675 K. The XRD and metallographic (optical and electron microscopy) studies reveal a multi-phase mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f3827516e920ad4707bf8e41ee112fe
https://doi.org/10.1023/a:1012932827861
https://doi.org/10.1023/a:1012932827861
Autor:
S. Sundararajan, S. Sundaresan, V.M. Radhakrishnan, C. R. Shamantha, Ramaswamy Narayanan, K. J. L. Iyer, S.K. Seshadri
Publikováno v:
Science and Technology of Welding and Joining. 5:329-337
Gas tungsten arc welding was performed on 18Ni (250 grade) maraging steel sheet using two different filler wires: one of the same composition as the base material and the other containing more cobalt and aluminium and less molybdenum and titanium. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ebdd092ec62e8036610f534c19ece88
https://doi.org/10.1179/136217100101538399
https://doi.org/10.1179/136217100101538399
Publikováno v:
Journal of Materials Science. 26:4455-4460
The onset of breakaway oxidation and cracking of the oxide scale formed on 2.25Cr-1Mo steel in air at 1173 K have been studied by the acoustic emission (AE) technique. AE parameters, i.e. events, ring-down counts, rise time, event duration and root m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b173a6a3390a5ff4ed076fe8f8d94273
https://doi.org/10.1007/bf00543667
https://doi.org/10.1007/bf00543667
Publikováno v:
Surface Engineering. 7:216-220
The electrochemical behaviour of sediment electrodeposited nickel-silicon nitride composite coatings on mild steel has been studied. These composite coatings provide better corrosion resistance in both 3.5% NaCl and 0.5M H2SO4 solution than nickel co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e77d348dea57cecd31f648f0286f3be
https://doi.org/10.1179/sur.1991.7.3.216
https://doi.org/10.1179/sur.1991.7.3.216
Autor:
V.M. Radhakrishnan, S. Sundararajan, S.K. Seshadri, C. R. Shamantha, Ramaswamy Narayanan, S. Sundaresan, K. J. L. Iyer
Publikováno v:
IndraStra Global.
Sheet material specimens from 18Ni (250-grade) maraging steel were gas tungsten-arc welded using two different filler wires: one matching the base material in composition and the other with higher cobalt but lower molybdenum and titanium contents. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5f75c517c40eb696ae36453b28328fc
https://igi.indrastra.com/items/show/73402
https://igi.indrastra.com/items/show/73402
Publikováno v:
Journal of Materials Science Letters. 10:64-66
In this work AE events and cumulative AE events have been measured during oxidation of 2.25 Cr-1 Mo steel at 773, 873, 973 and 1073 K and the results are compared with a corresponding thermogravimetric study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::630936be7e7cfcbfdfa3671aa939058f
https://doi.org/10.1007/bf00721908
https://doi.org/10.1007/bf00721908