OS2020 A Discussion of Torsional Fatigue Fracture of Extruded Magnesium Alloy, AZ80

2011 ◽  
Vol 2011 (0) ◽  
pp. _OS2020-1_-_OS2020-3_
Author(s):  
Kazuhiro EJIRI ◽  
Noriyasu OGUMA ◽  
Hirotsugu KITANO ◽  
Susumu MIYAMOTO ◽  
Toru TAKAHASHI
Keyword(s):  
Magnesium Alloy ◽  
Fatigue Fracture ◽  
Torsional Fatigue

Effect of structural state upon fatigue fracture in MA12 magnesium alloy in air and in vacuo

1978 ◽  
Vol 10 (9) ◽  
pp. 1026-1031 ◽  
Author(s):  
N. M. Grinberg ◽  
V. A. Serdyuk ◽  
S. G. Zmeevets
Keyword(s):  
Magnesium Alloy ◽  
Fatigue Fracture ◽  
Structural State

Study on Strain Hardening and Fatigue Fracture of AZ31B Magnesium Alloy after Laser Shot Peening

2011 ◽  
Vol 38 (8) ◽  
pp. 0803002
Author(s):  
黄舒 Huang Shu ◽  
周建忠 Zhou Jianzhong ◽  
蒋素琴 Jiang Suqin ◽  
盛杰 Sheng Jie ◽  
徐增闯 Xu Zengchuang ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Strain Hardening ◽  
Fatigue Fracture ◽  
Shot Peening ◽  
Laser Shot ◽  
Az31b Magnesium Alloy

Characteristics of fatigue fracture of magnesium alloy MA12 in air and in vacuum

1978 ◽  
Vol 13 (6) ◽  
pp. 636-639
Author(s):  
N. M. Grinberg ◽  
V. A. Serdyuk ◽  
I. L. Ostapenko ◽  
I. M. Lyubarskii
Keyword(s):  
Magnesium Alloy ◽  
Fatigue Fracture ◽  
Alloy Ma12

Effect of Solid Solution Treatment on Fatigue Behavior of Cast Magnesium Alloy

2013 ◽  
Vol 281 ◽  
pp. 436-440
Author(s):  
You Yang ◽  
Hua Wu ◽  
Zhao Feng Xuan
Keyword(s):  
Solid Solution ◽  
Magnesium Alloy ◽  
Fatigue Fracture ◽  
High Cycle Fatigue ◽  
Fatigue Behavior ◽  
Solution Treatment ◽  
Cycle Fatigue ◽  
Solid Solution Treatment ◽  
Cast Magnesium Alloy ◽  
Cast Magnesium

The effects of solid solution treatment on high cycle fatigue behavior of cast magnesium alloy AZ91D were investigated using an up-and-down load method. High cycle fatigue tests were carried out up to 107cycles at a stress ratio R=0.1 and frequency of 90Hz on specimens using a high frequency fatigue machine. The results showed that the fatigue strength of cast AZ91D magnesium alloy increase from 54.5Mpa to 71.5Mpa after solid solution treatment (T4) at 415°C, keeping temperature 16hours. The micro-fatigue fracture surface of alloy included fatigue initiation area, fatigue crack propagation area and fatigue fracture area. Fatigue crack of the alloys initiate principally at inclusions and shrinks under subsurface. The fatigue fracture of test specimens show the rupture characteristics of quasi-cleavage(as-cast alloy) and toughness(T4 alloy), respectively.

X-Ray Fractography on Fatigue Fracture Surfaces of Mg-9mass%Al-1mass%Zn Alloy

1995 ◽  
Vol 39 ◽  
pp. 491-498
Author(s):  
Yoichi Kishi ◽  
Shigenobu Takahashi ◽  
Yukio Hirose
Keyword(s):  
Residual Stress ◽  
Magnesium Alloy ◽  
Fracture Surface ◽  
Fatigue Fracture ◽  
Fracture Analysis ◽  
Fatigue Fracture Surface ◽  
Az91 Magnesium Alloy ◽  
X Ray ◽  
Fracture Surfaces ◽  
Az91 Magnesium

X-ray diffraction observation of fracture surfaces provides fracture analysis with useful information on the mechanisms and mechanical conditions of fracturing. This method is called ” X-ray fractography “ and has been developed especially in Japan as a new engineering tool for fracture analysis.In the present paper, X-ray fractography is applied to fatigue fracture surfaces of AZ91 magnesium alloy which are used for machine parts. The X-ray stress constant, H,was first determined. The fatigue tests were conducted by using compact tension ( CT ) specimens of AZ91 magnesium alloy. The residual stress was measured on and beneath the fatigue fracture surface. The depth of the plastic zone left on the fatigue fracture surface was evaluated from the residual stress distribution. The results are discussed on the basis of fracture mechanics.

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