Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

51312-01186-Investigation of Rapid Fracture Phenomenon in High Temperature Water

Picture for Investigation of Rapid Fracture Phenomenon in High Temperature Water
Available for download
Product Number: 51312-01186-SG
ISBN: 01186 2012 CP
Author: Xiaoyuan Lou
Publication Date: 2012
$0.00
$20.00
$20.00
Rapid fracture (or sudden fracture) of various wrought and weld metals in the environment have been observed during compact tension (CT) test in different laboratories. Hydrogen distribution throughout the metal has been proposed as the most possible mechanism to explain such a sudden or very rapid crack advance. This paper summarizes those findings and reports on controlled experiments designed to understand this phenomenon in cold-worked stainless steel and alloy 82/182 weld metal. SEM characterization of previous fractured specimens showed that rapid fracture usually produces ductile dimple fracture morphology although such fracture occurred at K values as low as 38 ksi/in. The effects of dissolved H2 and/or O2 concentration (threshold) K value the rate of change in K and water temperature on the occurrence of rapid fracture were investigated using CT specimens in high temperature water. The tests were designed to sustain stress corrosion crack (SCC) growth over sufficient time to allow hydrogen to permeate throughout the specimen then slowly increase K to intentionally reproduce the rapid fracture and evaluate the role of hydrogen on this behavior. The possibility of developing a specific protocol or guideline to evaluate this phenomenon in a fast and repeatable way was also evaluated.
Rapid fracture (or sudden fracture) of various wrought and weld metals in the environment have been observed during compact tension (CT) test in different laboratories. Hydrogen distribution throughout the metal has been proposed as the most possible mechanism to explain such a sudden or very rapid crack advance. This paper summarizes those findings and reports on controlled experiments designed to understand this phenomenon in cold-worked stainless steel and alloy 82/182 weld metal. SEM characterization of previous fractured specimens showed that rapid fracture usually produces ductile dimple fracture morphology although such fracture occurred at K values as low as 38 ksi/in. The effects of dissolved H2 and/or O2 concentration (threshold) K value the rate of change in K and water temperature on the occurrence of rapid fracture were investigated using CT specimens in high temperature water. The tests were designed to sustain stress corrosion crack (SCC) growth over sufficient time to allow hydrogen to permeate throughout the specimen then slowly increase K to intentionally reproduce the rapid fracture and evaluate the role of hydrogen on this behavior. The possibility of developing a specific protocol or guideline to evaluate this phenomenon in a fast and repeatable way was also evaluated.
Product tags
Also Purchased
Picture for Failure investigation of high pressure surge in 42” propane loading line in LPG Storage facility
Available for download

51312-01177-Failure investigation of high pressure surge in 42” propane loading line in LPG Storage facility

Product Number: 51312-01177-SG
ISBN: 01177 2012 CP
Author: Saad AL-Dhafiri
Publication Date: 2012
$20.00
Picture for Promising biological performance of biodegradable 3D coated Mg alloy bone scaffold
Available for download

51312-01178-Promising biological performance of biodegradable 3D coated Mg alloy bone scaffold

Product Number: 51312-01178-SG
ISBN: 01178 2012 CP
Author: XingGuo Cheng
Publication Date: 2012
$20.00

Mg alloy in the solid monolith form has been investigated as a promising orthopedic implant.  After 12 weeks of implantation (rabbits), significant bony tissue growth was observed both inside and outside the implants. These suggest the coated Mg alloy might be useful as a promising scaffold for bone repair and regeneration.
Picture for Dual layer structural thermoplastic polyester powder coating film for telecommunication plant
Available for download

51312-01175-Dual layer structural thermoplastic polyester powder coating film for telecommunication plant

Product Number: 51312-01175-SG
ISBN: 01175 2012 CP
Author: Yukitoshi Takeshita
Publication Date: 2012
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support