Relationship between Critical Stress of HAZ Cracking and Residual Diffusible Hydrogen Content

スポンサーリンク

概要

• 論文の詳細を見る

• There are few studies on the relationship between critical stress and residual diffusible hydrogen content H_R when the temperature in weld metal becomes a crack initiating temperature. It seems that residual diffusible hydrogen content H_R relates with critical stress of HAZ cracking more closely than initial hydrogen content H_O. This paper describes relationship between critical stress and residual hydrogen content at temperature 100℃ in weld metal. Residual hydrogen content H_R is measured by means of mercury method and experimental equations between H_R and thermal factor ΣD△t which relates with thermal cycle in weld metal are deduced. Conventional equation of thermal factor ΣD△t is deduced from 117 data on thermal cycles by use of regression analysis. Implant tests are carried out under various conditions of initial hydrogen content H_O. It is shown that critical stress is approximately obtained from residual diffusible hydrogen content (H_R)_<100> at temperature 100℃ in weld metal under various initial hydrogen contents.

• 社団法人溶接学会の論文
• 1979-04-01

著者

• Karppi Risto

  Osaka Univrersity

• Terasaki Toshio

  Osaka Univrersity

• TERASAKI Toshio

  Welding Engineering Department, Osaka University

• SATOH Kunihiko

  Welding Engineering Department, Osaka University

• Satoh Kunihiko

  Osaka Univrersity

• KARPPI Risto

  Welding Engineering Department of Faculty of Engineering in Osaka University

• Satoh Kunihiko

  Welding Engineering Department Osaka University

• Satoh Kunihiko

  Welding Engineering Department Of Osaka University

• Terasaki Toshio

  Welding Engineering Department Osaka University

関連論文

• 125 EMPIRIC STUDY TO RELATE THE RRC- AND TRC-TESTS WITH THE IMPLANT TEST ON MECHANICAL BASIS
• Local Stresses・Strains in Welds with Particular Reference to Weld Cracking
• Relationship between Critical Stress of HAZ Cracking and Residual Diffusible Hydrogen Content
• Static Tensile Properties of Welded Joints including Soft Interlayer
• Mechanical Behaviors of Welded Plates Including a Soft Interlayer under Tension Parallel to a Weld Line
• Static Strength of Welded Plates Including Soft Interlayer under Tension across a Weld Line
• A Method of Measuring Triaxial Residual Stress in Heavy Section Butt Weldments
• Thermal Stresses Developed in High-Strength Steels Subjected to Thermal Cycles Simulating Weld Heat-Affected Zone
• Transient Thermal Stresses of Weld Heat-Affected Zone by Both-Ends-Fixed Bar Analogy

スポンサーリンク