AMCO Integrity Pty. Ltd is an independent company registered in Australia. It is a highly innovative engineering and consulting company engaged in state of the art R&D and product development in the energy sector, including renewable and small scale energies, and in high temperature plant issues in general…
The Electric Discharge Sampling Equipment (EDSE) was developed by our UK based partner in collaboration with international partners to aid in the condition and life assessment of components. The sampling of in-service components has long been seen as an effective way of determining actual material properties and sub-surface material
The Portable Scanning Force Microscope (Integrity-Scanning Force Microscope) has been developed for early stage damage detection such as creep cavitation (especially in P91 & P92 steels) which will not be found using traditional replication techniques.…
Obikou is an on-site service for power, process and other high temperature plant and has shown to achieve creep life extension by a factor of about 4. It simply involves quickly reinforcing a potentially vulnerable or creep damaged pipe with multiple layers of thin high-temperature alloys strip that is wound/wrapped around a pipe thus halting/ reducing the development of creep damage….
AMCO has excellent expertise through its in-house R&D, plant service/technical
consulting and project management experience and links with plant manufacturers,
plant operators, service providers and researchers from around the world.
FABRICATION AND USE OF P91 STEEL: INTERNATIONAL INDUSTRY & PLANT EXPERIENCE CONFERENCE, NEWCASTLE, AUSTRALIA
The relatively new 9Cr martensitic steels P91 and P92 have helped to increase power plant temperatures, pressures and efficiency for the new generation of plants. They are also used as replacement components in older power plants where this has helped to increase plant flexibility and reduced component fabrication, replacement and related costs. However, these steels can only achieve their design strength if they are heat treated strictly to their specified heat treatment temperatures. As their high strength strictly depends on achieving ideal martensitic microstructure slight deviations from the specified temperatures, during manufacture, fabrication and welding can lead to disastrous consequences. Unfortunately, plant experience has shown that today P91 steel components are found in many power plants with various ‘aberrant’ or abnormal microstructures resulting in premature failures worldwide. Without long term creep strength data for these aberrant microstructures it is difficult to predict their safe operating life with any degree of certainty. The other factors that need special consideration are component inspection, monitoring and integrity/ life assessment. The last factor can be particularly problematic as micron size cavitation observed by traditional NDE tools in these steels, which has been successfully used in low alloy steels for creep life exhaustion studies, appears only late in life and therefore new concepts/ technologies/ techniques are required to enable plant operators to inspect early stage smaller size creep cavitation (nano or a few micron size), and predict damage/ failure and make ‘run, repair or replace’ decisions. Luckily a number of industry initiatives are now underway to address these issues and these will be discussed in this conference. The objective is to bring together plant manufacturers, fabricators, operators, service providers and researchers on one platform and learn from plant and research experience to date.
AMCO Integrity Pty Ltd presented a paper on “Advance materials integrity assessment analaysis”.