Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Defect-based characterization of the fatigue behavior of additively
  manufactured titanium aluminides   The additively manufactured titanium aluminide alloy TNM-B1 was characterized
microstructurally and mechanically in the as-built and hot isostatically
pressed (HIP) condition. Tensile and constant amplitude tests were performed at
room temperature and 800 {\deg}C. Using fractographic SEM images, the
fracture-inducing defect was identified. With the HIP, defect number and size
could be reduced, increasing fatigue strength by 43% to 500 MPa. Using the
model approaches of Murakami and Shiozawa, the fatigue life was correlated with
the local stress intensity factor and could be described as function of the
stress amplitude as well as the size and location of fracture-inducing defects.

25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom