Experimental and computational investigation of fracture toughness of cryo-rolling processed Al-6082 alloys

被引：6

作者：

Kumar, Vineet ^{[1
]}

Gope, Prakash Chandra ^{[2
]}

机构：

[1] GB Pant Govt Engn Coll, New Delhi, India

[2] G B Pant Univ Agr & Technol, Coll Technol, Pantnagar, Uttarakhand, India

来源：

ENGINEERING FAILURE ANALYSIS | 2024年 / 159卷

关键词：

Al-6082; alloy; Severe plastic deformation; Cryorolling; XFEM; Fracture toughness; FINITE-ELEMENT-METHOD; SEVERE PLASTIC-DEFORMATION; FATIGUE-CRACK GROWTH; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; ALUMINUM; MICROSTRUCTURE; SIMULATIONS; PROPAGATION; BEHAVIOR;

D O I：

10.1016/j.engfailanal.2024.108005

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The fracture toughness (KIC) of cryo-rolled Al-6082 was experimentally determined and compared with the Extended Finite Element (XFEM) simulation results. In this work, the commercially available Al-6082 alloy was exposed to rolling operation-induced severe plastic deformation (SPD) to enhance strength by restricting the deformation accumulation of the strain. The experimental results of room-temperature-rolled (RTR) and cryo-rolled (CR) sheets show increased mechanical and fracture toughness properties. About 148 % and 98 % increase in yield strength and tensile strength of 90 % CR sample with marginal decrease of 1.0 % in ductility was obtained. The fracture toughness of CR and RTR specimens shows about a 39 % and 30 % increment in 90 % CR alloy and 90 % RTR Al-6082 alloy, respectively. The experimental results were compared with finite element simulation results, and found excellent agreement between the experimental and XFEM simulation results. The enhancements of the properties are discussed based on the microstructural observations.

引用

页数：13

共 36 条

[31] A comparison of the effects of severe plastic deformation and heat treatment on the tensile properties and impact toughness of aluminum alloy 6061 [J].