A study of the coefficients in yield functions modeling metal powder deformation

1996 ◽  
Vol 44 (9) ◽  
pp. 3543-3552 ◽  
Author(s):  
T.C. Tszeng ◽  
W.T. Wu
1972 ◽  
Vol 11 (9) ◽  
pp. 698-700
Author(s):  
Yu. I. Kovalenko ◽  
G. A. Vinogradov

1993 ◽  
Vol 28 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Stuart Brown ◽  
Georges Abou-Chedid

Alloy Digest ◽  
2012 ◽  
Vol 61 (6) ◽  

Abstract Ancorsteel 4600V alloy is a water-atomized low-alloy sinter-hardening metal powder. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness. It also includes information on heat treating and powder metal forms. Filing Code: SA-655. Producer or source: Hoeganaes Corporation.


1999 ◽  
Vol 30 (2) ◽  
pp. 129-146 ◽  
Author(s):  
N. R. Nawaz ◽  
A. J. Adeloye ◽  
M. Montaseri

In this paper, we report on the results of an investigation into the impacts of climate change on the storage-yield relationships for two multiple-reservoir systems, one in England and the other in Iran. The impact study uses established protocol and obtains perturbed monthly inflow series using a simple runoff coefficient approach which accounts for non-evaporative losses in the catchment, and a number of recently published GCM-based scenarios. The multi-reservoir analysis is based on the sequent-peak algorithm which has been modified to analyse multiple reservoirs and to accommodate explicitly performance norms and reservoir surface fluxes, i.e. evaporation and rainfall. As a consequence, it was also possible to assess the effect of including reservoir surface fluxes on the storage-yield functions. The results showed that, under baseline conditions, consideration of net evaporation will require lower storages for the English system and higher storages for the Iranian system. However, with perturbed hydroclimatology different impacts were obtained depending on the systems' yield and reliability. Possible explanations are offered for the observed behaviours.


Metals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 896
Author(s):  
Matthias Schmitt ◽  
Albin Gottwalt ◽  
Jakob Winkler ◽  
Thomas Tobie ◽  
Georg Schlick ◽  
...  

The carbon content of steel affects many of its essential properties, e.g., hardness and mechanical strength. In the powder bed fusion process of metals using a laser beam (PBF-LB/M), usually, pre-alloyed metal powder is solidified layer-by-layer using a laser beam to create parts. A reduction of the carbon content in steels is observed during this process. This study examines adding carbon particles to the metal powder and in situ alloying in the PBF-LB/M process as a countermeasure. Suitable carbon particles are selected and their effect on the particle size distribution and homogeneity of the mixtures is analysed. The workability in PBF-LB is then shown. This is followed by an evaluation of the resulting mechanical properties (hardness and mechanical strength) and microstructure in the as-built state and the state after heat treatment. Furthermore, potential use cases like multi-material or functionally graded parts are discussed.


2021 ◽  
Vol 113 (1-2) ◽  
pp. 407-417
Author(s):  
Omid Emadinia ◽  
Maria Teresa Vieira ◽  
Manuel Fernando Vieira

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