Evolution of surface integrity and fatigue properties after milling, polishing, and shot peening of TC17 alloy blades

Liang Tan; Changfeng Yao; Dinghua Zhang; Junxue Ren; Zheng Zhou; Jiyin Zhang

doi:10.1016/j.ijfatigue.2020.105630

Evolution of surface integrity and fatigue properties after milling, polishing, and shot peening of TC17 alloy blades

Liang Tan, Changfeng Yao, Dinghua Zhang, Junxue Ren, Zheng Zhou, Jiyin Zhang

School of Mechanical Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

73 Scopus citations

Abstract

The surface integrity and fatigue properties of TC17 alloy blades under integrated manufacturing processes are investigated. The R_a values of milling–polishing (MP)-processed and milling–polishing–shot peening–vibration polishing (MPSV)-processed blades are less than 0.4 µm. MPSV produces a strengthened layer about 100 µm and a gradient microstructure. The modal analysis results obtained from finite element calculation corresponds well with the values measured experimentally. The fatigue lives of the MPSV-processed blades are increased by approximately 119.5% compared with the MP-processed blades. The fatigue fracture morphology indicates that fatigue cracks are initiated on the leading edge surface regardless of the processes employed.

Original language	English
Article number	105630
Journal	International Journal of Fatigue
Volume	136
DOIs	https://doi.org/10.1016/j.ijfatigue.2020.105630
State	Published - Jul 2020

Keywords

Fatigue fracture
Fatigue life
Shot peening
Surface integrity
TC17 alloy blades

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title = "Evolution of surface integrity and fatigue properties after milling, polishing, and shot peening of TC17 alloy blades",

abstract = "The surface integrity and fatigue properties of TC17 alloy blades under integrated manufacturing processes are investigated. The Ra values of milling–polishing (MP)-processed and milling–polishing–shot peening–vibration polishing (MPSV)-processed blades are less than 0.4 µm. MPSV produces a strengthened layer about 100 µm and a gradient microstructure. The modal analysis results obtained from finite element calculation corresponds well with the values measured experimentally. The fatigue lives of the MPSV-processed blades are increased by approximately 119.5% compared with the MP-processed blades. The fatigue fracture morphology indicates that fatigue cracks are initiated on the leading edge surface regardless of the processes employed.",

keywords = "Fatigue fracture, Fatigue life, Shot peening, Surface integrity, TC17 alloy blades",

author = "Liang Tan and Changfeng Yao and Dinghua Zhang and Junxue Ren and Zheng Zhou and Jiyin Zhang",

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AU - Tan, Liang

AU - Yao, Changfeng

AU - Zhang, Dinghua

AU - Ren, Junxue

AU - Zhou, Zheng

AU - Zhang, Jiyin

PY - 2020/7

Y1 - 2020/7

N2 - The surface integrity and fatigue properties of TC17 alloy blades under integrated manufacturing processes are investigated. The Ra values of milling–polishing (MP)-processed and milling–polishing–shot peening–vibration polishing (MPSV)-processed blades are less than 0.4 µm. MPSV produces a strengthened layer about 100 µm and a gradient microstructure. The modal analysis results obtained from finite element calculation corresponds well with the values measured experimentally. The fatigue lives of the MPSV-processed blades are increased by approximately 119.5% compared with the MP-processed blades. The fatigue fracture morphology indicates that fatigue cracks are initiated on the leading edge surface regardless of the processes employed.

AB - The surface integrity and fatigue properties of TC17 alloy blades under integrated manufacturing processes are investigated. The Ra values of milling–polishing (MP)-processed and milling–polishing–shot peening–vibration polishing (MPSV)-processed blades are less than 0.4 µm. MPSV produces a strengthened layer about 100 µm and a gradient microstructure. The modal analysis results obtained from finite element calculation corresponds well with the values measured experimentally. The fatigue lives of the MPSV-processed blades are increased by approximately 119.5% compared with the MP-processed blades. The fatigue fracture morphology indicates that fatigue cracks are initiated on the leading edge surface regardless of the processes employed.

KW - Fatigue fracture

KW - Fatigue life

KW - Shot peening

KW - Surface integrity

KW - TC17 alloy blades

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DO - 10.1016/j.ijfatigue.2020.105630

M3 - 文章

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VL - 136

JO - International Journal of Fatigue

JF - International Journal of Fatigue

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ER -

Evolution of surface integrity and fatigue properties after milling, polishing, and shot peening of TC17 alloy blades

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Keywords

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