Engineering Failure Analysis

, volume 126 , pages 105458

16MnCr5 gear shaft fracture caused by inclusions and heat treatment process

Sai Cai ¹

Jinquan Sun ^{1, 2}

Qingkun He ¹

Tong Shi ¹

Dongrui Wang ¹

Jinwei Si ¹

Jian Yang ¹

Fujie Li ¹

Kun Xie ¹

Min Li ¹

Hide authors affiliations Show authors affiliations: 2 affiliations

College of Material Science and Technology, Shandong University of Science and Technology, Qingdao 266510, China |

The Project National United Engineering Laboratory for Advanced Bearing Tribology, Henan University of Science and Technology, Luoyang 471023, China |

Publication type: Journal Article

Publication date: 2021-08-01

Elsevier

Engineering Failure Analysis

scimago Q1

wos Q1

SJR: 1.159

CiteScore: 8.8

Impact factor: 5.7

ISSN: 13506307, 18731961

DOI: 10.1016/j.engfailanal.2021.105458

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General Materials Science

General Engineering

Abstract

• The surface hardness of carburizing quenching hardening layer is low. • Non-martensite microstructure is formed after heat treatment. • The presence of inclusions reduces the mechanical and fatigue properties of the steel. • The gear shaft is ductile fracture. Gear shaft of 16MnCr5 steel is an important moving part to transfer torque in truck steering, which fatigue design life is 50,000 times. However, the lifetime of the test results is only about half in two design life. The microstructure, slag inclusion, phase composition and microhardness profiles of failure gear shaft were characterized by the optical microscope, scanning electron microscope and microhardness tester, respectively. The results show that cracks appeared at the fillet of the top, pitch circle and root of the gear. The size and distribution of slag inclusions in16MnCr5 steel also have a certain effect on the initiation of surface cracks of gears. The surface hardness of carburizing quenching hardening layer is low. After the heat treatment, a non-martensitic microstructure is formed, and machining hardening occurs on the right tooth surface, which seriously affects the contact fatigue degree of the gear.

Found

2 citations

Tyutin Marat

PhD in Engineering

55 publications, 278 citations, 18 reviews

h-index: 8

A.A. Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences

Non-destructive testing

Solid State Physics

2 citations

Botvina Ludmila

138 publications, 594 citations

h-index: 10

A.A. Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences

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GOST |

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GOST Copy

Cai S. et al. 16MnCr5 gear shaft fracture caused by inclusions and heat treatment process // Engineering Failure Analysis. 2021. Vol. 126. p. 105458.

GOST all authors (up to 50) Copy

Cai S., Sun J., He Q., Shi T., Wang D., Si J., Yang J., Li F., Xie K., Li M. 16MnCr5 gear shaft fracture caused by inclusions and heat treatment process // Engineering Failure Analysis. 2021. Vol. 126. p. 105458.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1016/j.engfailanal.2021.105458

UR - https://doi.org/10.1016/j.engfailanal.2021.105458

TI - 16MnCr5 gear shaft fracture caused by inclusions and heat treatment process

T2 - Engineering Failure Analysis

AU - Cai, Sai

AU - Sun, Jinquan

AU - He, Qingkun

AU - Shi, Tong

AU - Wang, Dongrui

AU - Si, Jinwei

AU - Yang, Jian

AU - Li, Fujie

AU - Xie, Kun

AU - Li, Min

PY - 2021

DA - 2021/08/01

PB - Elsevier

SP - 105458

VL - 126

SN - 1350-6307

SN - 1873-1961

ER -

BibTex

Cite this

BibTex (up to 50 authors) Copy

@article{2021_Cai,

author = {Sai Cai and Jinquan Sun and Qingkun He and Tong Shi and Dongrui Wang and Jinwei Si and Jian Yang and Fujie Li and Kun Xie and Min Li},

title = {16MnCr5 gear shaft fracture caused by inclusions and heat treatment process},

journal = {Engineering Failure Analysis},

year = {2021},

volume = {126},

publisher = {Elsevier},

month = {aug},

url = {https://doi.org/10.1016/j.engfailanal.2021.105458},

pages = {105458},

doi = {10.1016/j.engfailanal.2021.105458}

}

Publisher

Elsevier

Journal

Engineering Failure Analysis

scimago Q1

wos Q1

SJR

1.159

CiteScore

8.8

Impact factor

5.7

ISSN

13506307 (Print, Electronic)

18731961