Fracture Analysis of a Power Generating Machine Part by X-ray Fractography

1993 ◽  
pp. 301-316
Author(s):  
MAKOTO HAYASHI
Keyword(s):  
Machine Part ◽  
Fracture Analysis ◽  
X Ray

X-Ray Fractographic Study On Fracture of a Machine Part

1989 ◽  
pp. 833-838 ◽  
Author(s):  
Kazuyuki Matsui ◽  
Yukio Hirose ◽  
Akiyoshi Chadani ◽  
Keisuke Tanaka
Keyword(s):  
Machine Part ◽  
X Ray ◽  
Fractographic Study

scholarly journals Fracture analysis and countermeasures of the grid switch castings

2020 ◽  
Vol 165 ◽  
pp. 06015
Author(s):  
Chao Feng ◽  
Siyuan Yang ◽  
Qiao Li ◽  
Mengbao Zhou ◽  
Songqi Wu ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Fracture Analysis ◽  
Casting Defects ◽  
Physical And Chemical Properties ◽  
Direct Reading ◽  
X Ray ◽  
Detection Technology ◽  
Two Stages ◽  
Physical And Chemical ◽  
And Chemical Properties

Based on the detection technology of direct reading spectrum, metallographic microscope and X-ray, the defects of the grid switch castings were analyzed. The four main forms of casting fracture were summarized as poor physical and chemical properties, material misuse, casting defects and designing defects. In order to strengthen the quality control of the source of the product, it was proposed to carry out targeted network inspection in the two stages of material arrival and infrastructure acceptance.

The Use of 2-D Detector Utilizing Laser-Stimulated Luminescence for X-ray Diffraction Studies on Mechanical Behaviour of Materials

1989 ◽  
Vol 33 ◽  
pp. 389-396 ◽  
Author(s):  
Y. Yoshioka ◽  
T. Shinkai ◽  
S. Ohya
Keyword(s):  
Fracture Analysis ◽  
X Rays ◽  
Large Reduction ◽  
X Ray Diffraction ◽  
Crystalline Materials ◽  
X Ray ◽  
Material Evaluation ◽  
Position Sensitive ◽  
Diffraction Patterns ◽  
Position Sensitive Detectors

The development of linear position-sensitive detectors (PSD) has resulted in a large reduction of data acquisition times in the field of x-ray stress analysis. However, we also require two-dimensional (2-D) diffraction patterns for material evaluation. Especially, the microbeam x-ray diffraction technique gives valuable information on the structure of crystalline materials and this technique has been applied to fracture analysis by x-rays. Many kinds of 2-D PSD have been developed that have insufficient spatial resolution. So x-ray film has still been used as a 2-D detector, but it requires relatively long exposure times and then the process after exposure is very troublesome.

Application of Microbeam X-Ray Technique to the Evaluation of the Plastic Zone Size of Fatigued Steels

1978 ◽  
Vol 22 ◽  
pp. 221-226 ◽  
Author(s):  
Akimasa Izumiyama ◽  
Yasuo Yoshioka ◽  
Masao Terasawa
Keyword(s):  
Plastic Zone ◽  
Low Carbon Steel ◽  
Plastic Zone Size ◽  
Fracture Analysis ◽  
Low Carbon ◽  
Zone Size ◽  
X Ray Diffraction ◽  
Fatigue Fracture Surface ◽  
X Ray ◽  
Cyclic Plastic Zone

The microbeam X-ray diffraction technique was used for the evaluation of fracture analysis on the fatigued low carbon steel specimens.It is possible to evaluate both monotonic and cyclic plastic zone sizes beneath fatigue fracture surface. Thus the stress intensity factor can be estimated.

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.

Fracture Analysis of Nodular Cast Iron By X-ray Fractography

1990 ◽  
Vol 34 ◽  
pp. 711-718 ◽  
Author(s):  
Kazuyuki Matsui ◽  
Yukio Hirose ◽  
Akiyoshi Chadani ◽  
Keisuke Tanaka
Keyword(s):  
Cast Iron ◽  
Quantitative Analysis ◽  
Fracture Surface ◽  
Nodular Cast Iron ◽  
Fracture Analysis ◽  
X Ray Diffraction ◽  
Engineering Structures ◽  
X Ray ◽  
Causes Of Failure

Fracture accidents of engineering structures and machines in operation sometimes result from defects. One of the purposes of fracture analysis are to determine the causes of failure, and to use the information to prevent similar failure accidents. It is important to obtain quantitative analysis from the fracture surface. X-ray diffraction technique as well as Electron Fraotography has been widely used for fracture analysis of engineering structures and machines.

The Study of Fatigue Behavior of Ductile Cast Iron by Means of X-Ray Fractographic Technique

1991 ◽  
Vol 35 (A) ◽  
pp. 511-518
Author(s):  
Zenjiro Yajima ◽  
Masaki Shinohara ◽  
Ken-ichi Ishikawa ◽  
Yukio Hirose ◽  
Keisuke Tanaka
Keyword(s):  
Cast Iron ◽  
Fatigue Behavior ◽  
Fracture Analysis ◽  
Ductile Cast Iron ◽  
X Ray Diffraction ◽  
X Ray

X-ray diffraction observation of metal fractures 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.

Sign in / Sign up

Export Citation Format

Share Document