17751 Abstract
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Effect of Hot Rolling Temperature on Cold Roll Formability of TC20 Alloy(PDF)

MATERIALS CHINA[ISSN:1674-3962/CN:61-1473/TG]

Issue:
2018年第07期
Page:
26-30
Research Field:
研究报告
Publishing date:

Info

Title:
Effect of Hot Rolling Temperature on Cold Roll Formability of TC20 Alloy
Author(s):
LUO Jinhua1 ZHU Yanli12 HOU Fengqi1 ZHANG Tiebang2 TIAN Cheng1 LI Yinghao1
(1. Western Superconducting Technologies Co, Ltd, Xian 710018, China)(2. School of Materials Science and Engineering, Northwestern Polytechnical University, Xian 710072, China)
Keywords:
TC20 titanium alloy hot rolling temperature cold roll formability microstructure room temperature compression
CLC:

PACS:
-
DOI:
10.7502/j.issn.1674-3962.2018.07.06
DocumentCode:

Abstract:
In this paper, the deformation and destabilization of cold rolling TC20 alloy bars which were hotrolled at 1000, 940 and 850 ℃, were analyzed and compared. Combined with the microstructure of hotrolled bars and room temperature compression experiments, the result showed that the lower hotrolling temperature, the poorer the coldrolling formability. The bar hotrolled at 850 ℃ possessed the longitudinal microstructure of continuous fibrous αphase, and cold deformation property was poor, about 40%. The bar hotrolled at 1000 ℃ possessed more βphase, the cold deformation reached up to 60%, and showed higher compression rate and lower workhardening rate. The coldrolling formability of TC20 alloy bar had a strong correlation with its room temperature compression performance, the bars with higher compression rate and lower hardening rate in the plastic deformation stage had better cold roll formability.

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Last Update: 2018-08-08