Mr
qing teng
(Huazhong University of Science and Technology)
06/12/2017, 18:00
HIP Process
Poster
In this work, diffusion bonding between Aluminum and Copper were successfully performed by hot isostatic pressing (HIP). In order to improve the strength of diffusion bonding joint, different thickness of pure Nickel foils was used as an intermediate layer. The microstructure of the interface between Aluminum and Copper was investigated using X-ray diffraction (XRD) technique, secondary...
Mr
Motoyasu Aoki
(Doshisha University)
06/12/2017, 18:00
Materials
Poster
Fabrication of diamond/SiC=75/25~50/50vol% composites have been tried using hot isostatic pressing at 1450°C under 196 MPa for 2 h from the mixtures of diamond and Si powders. The former consisted of bimodal particle sizes Ps of 69 and 9.2 µm, and the latter average Ps of 0.60 µm. They were mixed using an alumina mortar and pestle for 30 min in ethanol thoroughly. After drying, a small amount...
Dr
ANDERS EKLUND
(QUINTUS TECHNOLOGIES AB)
06/12/2017, 18:00
HIP Process
Poster
MIM is an excellent process to produce smaller parts in large numbers for many industries, i.e. Automotive, Medical, Dental and Aerospace.
However, even after the final sintering residual pores exist within the material. To remove these pores, Hot Isostatic Pressing or HIP is the obvious choice. By applying a HIP step, pores will be eliminated and the density will increase to virtually 100%...
Dr
ANDERS EKLUND
(QUINTUS TECHNOLOGIES AB)
06/12/2017, 18:00
HIP Process
Poster
Powder Metallurgy is a competitive method vs forgings and castings, when it comes to cost effectiveness manufacturing of complex parts or alloy systems prone to cracking during heat treatment.
By applying a Heat Treatment step in the HIP, due to the use of high pressure during the HT-step, it opens up new possibilities for to improve the strength, ductility and especially the fatigue...
Mr
Yi-wen ZHANG
(Central Iron and Steel Research Institute)
06/12/2017, 18:00
Aerospace
Poster
Dual-alloy turbine wheels produced by HIP diffusion bonding of vacuum investment cast blade rings of the cast superalloy K418B to preconsolidated powder metal hubs of the powder metallurgy(PM) superalloy FGH4091, which have the long cyclic lives characteristic of PM superalloys combined with the high creep strength and net-shape blades characteristic of cast superalloys. After machining, the...
Dr
ANDERS EKLUND
(QUINTUS TECHNOLOGIES AB)
06/12/2017, 18:00
Materials
Poster
Hot Isostatic Pressing, HIP, is a method to apply a high pressure, typically 7,500 – 30,000 psi, at elevated temperatures, typically 700F up to 4000F, to eliminated voids in the material, like pores and gas bubbles, for increased material properties, i.e fatigue, tensile strength and elongation, and remove cracks and to reduce scrap.
Another advantage with HIP is the heat treatment that can...
Dr
ANDERS EKLUND
(QUINTUS TECHNOLOGIES AB)
06/12/2017, 18:00
HIP Process
Poster
A common problem in the HIP industry is discoloring of parts with high Chromium content, like for Stainless Steel or Cobalt-Chromium-alloys that turns out green, for Ti-alloys that turns out blue or yellow, and for Cu-alloys that can have a black surface.
HIP users use different methods to avoid the coloring, like having different kind of getters, i.e. Titanium sponge. They wrap parts in...
Prof.
Hongxia Chen
(CHINA IRON & STEEL RESEARCH INSTITUTE GROUP)
06/12/2017, 18:00
HIP Process
Poster
Additive manufacturing technology has significant advantages in fabricating parts with complex shape, but the internal defects, such as residual stress, pores and microcracks, would result in fatal problems under certain circumstances. To meet the requirement of HIP treatment on additive manufactured parts, we studied the thermodynamic behavior of the gas medium under high temperature and high...
