Test Results for Wrought and AM In718 Treated by Shot Peening and Laser Peening Plus Thermal Microstructure Engineering

被引：8

作者：

Hackel, Lloyd ^{[1
]}

Fuhr, Jochen ^{[1
]}

Sharma, Montu ^{[1
]}

Rankin, Jon ^{[1
]}

Sherman, Vincent ^{[1
]}

Davami, Keivan ^{[2
]}

机构：

[1] Met Improvement Co, Curtiss Wright, Surface Technol, Livermore, CA 94551 USA

[2] Univ Alabama, Dept Mech Engn, Tuscaloosa, AL 35487 USA

来源：

FATIGUE DESIGN 2019, INTERNATIONAL CONFERENCE ON FATIGUE DESIGN, 8TH EDITION | 2019年 / 19卷

关键词：

Additive Manufacturing; Laser Peening; Shot Peening; Thermal; Fatigue; RESIDUAL-STRESS; FATIGUE-STRENGTH; BEHAVIOR; DEFECTS; STEEL;

D O I：

10.1016/j.prostr.2019.12.049

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fatigue improvement by shot peening and laser peening on additive manufacturing. Fatigue life improvement by shot peening (SP) and laser peening (LP) on metals is already well known. However, we are short of information about results on manufacturing (AM) parts, which are characterized by bad surface finishing, micro-porosities and structural defects. This paperstudies the effects of SP and LP on AM In718. Residual stress profiles, fractures surface, fatigue results will be detailed. Different thermal microstructure and surface preparations are compared: raw AM, SP, LP, polished. 2019 The Authors. Published by Elsevier B.V.

引用

页码：452 / 462

页数：11

共 13 条

[1] Cyclic Oxidation Resistance of In718 Superalloy Treated by Laser Peening
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[3] Cyclic Oxidation Resistance of In718 Superalloy Treated by Laser Peening
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