Zobrazeno 1 - 10
of 54
pro vyhledávání: '"I. M. Robertson"'
Autor:
I. M. Robertson, G. B. Schaffer
Publikováno v:
Powder Metallurgy. 54:412-419
Using a combination of mixed elemental powders and TiB2, a series of Ti–Ni and Ti–Ni–B alloys were optimised for sintering by varying the nickel and boron contents, the particle size of the elemental powders and the compaction pressure. The sin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::274d460d276098966bed25044a8af919
https://doi.org/10.1179/003258910x12740974839422
https://doi.org/10.1179/003258910x12740974839422
Autor:
G. B. Schaffer, I. M. Robertson
Publikováno v:
Metallurgical and Materials Transactions A. 41:2949-2958
An approximate master curve for the densification of cold-pressed titanium powder during vacuum sintering was published previously. It was based on the combined results for three different titanium powders. The master densification curve model incorp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e436ee604a2cb4ca06bf1e8401fbee4
https://doi.org/10.1007/s11661-010-0290-7
https://doi.org/10.1007/s11661-010-0290-7
Autor:
I. M. Robertson, G. B. Schaffer
Publikováno v:
Powder Metallurgy. 53:146-162
The development of novel extractive metallurgy techniques for titanium offers the prospect of lower cost Ti powder and therefore wider application of Ti. This review is largely confined to coverage of the low cost press and sinter methods of powder m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fde4c2cab2a48ded51d056e49023d14c
https://doi.org/10.1179/174329009x434293
https://doi.org/10.1179/174329009x434293
Autor:
G. B. Schaffer, I. M. Robertson
Publikováno v:
Powder Metallurgy. 53:12-19
The cold compaction and vacuum sintering behaviour of a Ti powder and a Ti hydride powder were compared. Master sintering curve models were developed for both powders. Die ejection force, green str...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5efc15686622a7e0dae96c923a44a806
https://doi.org/10.1179/003258909x12450768327063
https://doi.org/10.1179/003258909x12450768327063
Autor:
G. B. Schaffer, I. M. Robertson
Publikováno v:
Powder Metallurgy. 53:27-33
Compacts were prepared by pressing titanium and titanium hydride powders mixed with nickel powder and sintering under vacuum. Severe swelling was observed only for compacts based on TiH2 powder. Pressure changes in the vacuum furnace, dilatometry res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc7dc33c1adc635d05a8abb05b8bd837
https://doi.org/10.1179/003258909x12502872942534
https://doi.org/10.1179/003258909x12502872942534
Autor:
G. B. Schaffer, I. M. Robertson
Publikováno v:
Powder Metallurgy. 52:316-321
In earlier work the authors examined the sintering of Ti-Ni alloys by means of dilatometry of mixed elemental powders. Some notable differences were observed when heat treatments were carried out using a vacuum tube furnace rather than the dilatomete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b82273dbf35b8edc8196e7859ae6722e
https://doi.org/10.1179/003258909x12450768327108
https://doi.org/10.1179/003258909x12450768327108
Autor:
I. M. Robertson, G. B. Schaffer
Publikováno v:
Powder Metallurgy. 52:311-315
Few Ti alloys have been designed for ease of sintering. This paper considers the design of alloys for processing using the mixed elemental technique, in which powders are mixed, cold pressed in a die to near net shape and sintered under vacuum at hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4e4004f5ee6a710148173e293b5ee47
https://doi.org/10.1179/003258909x12502872942499
https://doi.org/10.1179/003258909x12502872942499
Autor:
G. B. Schaffer, I. M. Robertson
Publikováno v:
Powder Metallurgy. 52:213-224
The compaction and sintering conditions required for avoidance of swelling and development of very coarse pores during liquid phase sintering of mixed elemental titanium powder metallurgy alloys are described with reference to the titanium–nickel b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59df69cf369dd7f6fc00eccd0b7465a0
https://doi.org/10.1179/174329009x380590
https://doi.org/10.1179/174329009x380590
Autor:
G. B. Schaffer, I. M. Robertson
Publikováno v:
Powder Metallurgy. 52:225-232
The suitability of nickel as an alloying element in titanium alloys produced using the blended elemental powder metallurgy approach has been explored. Nickel initially accelerates sintering, providing greater densification at lower temperature than o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4474f96f1f48559d3fdd5af170350acd
https://doi.org/10.1179/003258908x336391
https://doi.org/10.1179/003258908x336391
Autor:
I. M. Robertson, G. B. Schaffer
Publikováno v:
Metallurgical and Materials Transactions A. 40:1968-1979
The press-and-sinter method of producing net shapes was applied to titanium alloys. The quantitative effects of the particle size of titanium and Ti-6Al-4V powders on the green and sintered densities were examined. Most powders were pressed at 100 to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db583e4b1011dc6ab9b6d3a3b30ad019
https://doi.org/10.1007/s11661-009-9894-1
https://doi.org/10.1007/s11661-009-9894-1