Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"dp980"”.
-
Effect of microstructure on the fracture response of advanced high strength steels
… a galvanized DP780, a TRIP780, a galvannealed DP980, a galvanized DP980, an uncoated DP980, and a fine grained DP980. All AHSS grades were tensile tested to obtain values for ultimate tensile strength, yield strength, percent uniform and total elongation. An analysis was performed to quantify …
-
Spot Friction Welding of Ultra High-Strength Automotive Sheet Steel
… Alloys studied included DP780, DP780EG, DP980, and DF140T sheet steel of varying thickness from 1.2 mm to 1.4 mm. Welding was accomplished using a PCBN standard tool. Weld strengths were then compared to a proposed AWS standard. Initial hardness readings were taken in cross sectioned …
-
Effects of deformation modes on the susceptibility of delayed fracture of advanced high strength steels
… of commercially-produced sheet steels (DP780, DP980, TRIP780 and TRIP980). Specimens were strained by either uniaxial tension or bending prior to hydrogen charging and their delayed fracture response was compared with non-deformed samples. Micro hardness testing was performed to assess the …
-
Development of LTTW consumables for the enhancement of mechanical properties and residual stress management in thin steel welded joints
… wire, EH200B, was designed for arc welding of DP980 AHSS thin plates. Its composition was tailored for electrode weldability optimization. Effects of the LTTW wire on weld microstructure, distortion, residual stresses distribution, and fatigue properties of the lap joint panels were studied in …
-
Edge Fracture Prediction Of Dual Phase Steels With Consideration Of Microstructures
… edge fracture of two AHSS, Dual Phase DP780 and DP980. The HE test includes two processing steps: hole punching and hole expanding. The punching process creates holes of various sheared edge morphologies, which are the input to the hole expanding process, along with the intrinsic property of …