PMID- 36013626
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220830
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 15
IP  - 16
DP  - 2022 Aug 10
TI  - Surface Condition Evolution and Fatigue Evaluation after Different Surface 
      Processes for TiAl(47)Cr(2)Nb(2) Alloy.
LID - 10.3390/ma15165491 [doi]
LID - 5491
AB  - The TiAl(47)Cr(2)Nb(2) alloy fatigue specimens were prepared by investment 
      casting, and three kinds of surface processes were applied to fatigue specimens. 
      These three processes were sand-blasting (SB), sand-blasting and shot-peening 
      (SBSP) and sand-blasting and mechanical grinding (SBMG). The surface condition 
      evolutions before and after thermal exposure at 700  degrees C for 24 h were 
      investigated. The fatigue performances of specimens after thermal exposure were 
      evaluated. The results show that the surface roughness Ra after SB, SBSP and SBMG 
      processes were 3.14, 2.35 and 0.04 microm, respectively. After thermal exposure, they 
      almost remained unchanged for all three processes. The SB process caused work 
      hardening in the near-surface region and the work hardening reached saturation 
      after the SB process. Due to the mechanical grinding (MG) process removing the 
      uncertain thick hardening layer, the maximum hardness after SBMG process was 
      noticeably lower than those after SB and SBSP processes. After thermal exposure, 
      the maximum hardness after SB, SBSP and SBMG processes significantly recovered. 
      The SBMG specimens had the highest fatigue limit of 350 MPa. This is attributed 
      to the SBMG specimens having very smooth surfaces and some work hardening 
      remaining near their surface layers.
FAU - Yu, Wen
AU  - Yu W
AUID- ORCID: 0000-0003-1052-7175
AD  - State Key Laboratory of Materials Processing and Die and Mould Technology, 
      Huazhong University of Science and Technology, Wuhan 430074, China.
AD  - Cast Titanium Alloy R & D Center, Beijing Institute of Aeronautical Materials, 
      Beijing 100095, China.
FAU - Yin, Yajun
AU  - Yin Y
AD  - State Key Laboratory of Materials Processing and Die and Mould Technology, 
      Huazhong University of Science and Technology, Wuhan 430074, China.
FAU - Zhou, Jianxin
AU  - Zhou J
AD  - State Key Laboratory of Materials Processing and Die and Mould Technology, 
      Huazhong University of Science and Technology, Wuhan 430074, China.
FAU - Xu, Qian
AU  - Xu Q
AD  - State Key Laboratory of Materials Processing and Die and Mould Technology, 
      Huazhong University of Science and Technology, Wuhan 430074, China.
FAU - Feng, Xin
AU  - Feng X
AD  - Cast Titanium Alloy R & D Center, Beijing Institute of Aeronautical Materials, 
      Beijing 100095, China.
AD  - Beijing Engineering Research Center of Advanced Titanium Alloy Precision Forming 
      Technology, Beijing 100095, China.
AD  - Beijing Institute of Aeronautical Materials Co., Ltd., Beijing 100094, China.
FAU - Nan, Hai
AU  - Nan H
AD  - Cast Titanium Alloy R & D Center, Beijing Institute of Aeronautical Materials, 
      Beijing 100095, China.
AD  - Beijing Engineering Research Center of Advanced Titanium Alloy Precision Forming 
      Technology, Beijing 100095, China.
AD  - Beijing Institute of Aeronautical Materials Co., Ltd., Beijing 100094, China.
FAU - Zuo, Jiabin
AU  - Zuo J
AD  - Cast Titanium Alloy R & D Center, Beijing Institute of Aeronautical Materials, 
      Beijing 100095, China.
AD  - Beijing Engineering Research Center of Advanced Titanium Alloy Precision Forming 
      Technology, Beijing 100095, China.
AD  - Beijing Institute of Aeronautical Materials Co., Ltd., Beijing 100094, China.
FAU - Wang, Xiangning
AU  - Wang X
AD  - Cast Titanium Alloy R & D Center, Beijing Institute of Aeronautical Materials, 
      Beijing 100095, China.
AD  - Beijing Engineering Research Center of Advanced Titanium Alloy Precision Forming 
      Technology, Beijing 100095, China.
AD  - Beijing Institute of Aeronautical Materials Co., Ltd., Beijing 100094, China.
FAU - Ding, Xianfei
AU  - Ding X
AD  - Cast Titanium Alloy R & D Center, Beijing Institute of Aeronautical Materials, 
      Beijing 100095, China.
AD  - Beijing Engineering Research Center of Advanced Titanium Alloy Precision Forming 
      Technology, Beijing 100095, China.
AD  - Beijing Institute of Aeronautical Materials Co., Ltd., Beijing 100094, China.
LA  - eng
GR  - U1808216/National Natural Science Foundation of China/
GR  - 2020YFB1710100/National Key Research and Development Program of China/
GR  - 2222092/Beijing Natural Science Foundation/
GR  - J2019-VI-0003-0116/National Science and Technology Major Project/
PT  - Journal Article
DEP - 20220810
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC9410178
OTO - NOTNLM
OT  - TiAl alloy
OT  - fatigue behaviors
OT  - investment casting
OT  - surface condition
COIS- The authors declare no conflict of interest.
EDAT- 2022/08/27 06:00
MHDA- 2022/08/27 06:01
PMCR- 2022/08/10
CRDT- 2022/08/26 01:30
PHST- 2022/07/18 00:00 [received]
PHST- 2022/08/07 00:00 [revised]
PHST- 2022/08/08 00:00 [accepted]
PHST- 2022/08/26 01:30 [entrez]
PHST- 2022/08/27 06:00 [pubmed]
PHST- 2022/08/27 06:01 [medline]
PHST- 2022/08/10 00:00 [pmc-release]
AID - ma15165491 [pii]
AID - materials-15-05491 [pii]
AID - 10.3390/ma15165491 [doi]
PST - epublish
SO  - Materials (Basel). 2022 Aug 10;15(16):5491. doi: 10.3390/ma15165491.