Danqi Wang

Danqi Wang, Ph.D.

Associate
Materials & Corrosion Engineering
Los Angeles

Dr. Wang specializes in failure analysis, metallurgy, materials characterization, mechanical testing, surface engineering, and fractography. He has extensive experience in new product development, including materials evaluation, failure analysis, and quality control. His analytical capabilities include scanning electron microscopy (SEM), focused ion beam (FIB), 3D reconstruction of SEM/FIB- and CT-based image stacks, transmission electron microscopy (TEM), electron backscatter diffraction (EBSD), energy dispersive X-ray spectroscopy (EDS/EDX), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS).

Before joining Exponent, Dr. Wang was an engineer at the Case Western Reserve University Swagelok Center for Analysis of Materials. He led several new product development and material characterization projects for industrial clients, including optimizing microstructure of catalysts, quantitatively evaluating different phases and precipitates in steels, and investigating chemistry and uniformity of thin film on particles. He also provided consultation and root cause failure analysis services for various materials and devices, including metals, polymers, ceramics, semiconductors, and composites.

Dr. Wang received his Ph.D. in Materials Science and Engineering from Case Western Reserve University in 2014. His research focused on correlating corrosion resistance and mechanical properties with microstructure of low-temperature gas-phase carburized and nitrided 17-7 PH stainless steel. In addition, he investigated interstitial supersaturation of the surface ferrite phase of this material. He gained substantial hands-on experience including SEM/EDS, FIB, TEM, atom probe tomography, EBSD, XRD, XPS, and AES.

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Materials Science and Engineering, Case Western Reserve University, 2014
  • M.S., Materials Science and Engineering, Case Western Reserve University, 2011
  • B.S., Materials Science and Engineering, Tianjin University, China, 2008

LANGUAGES

  • Mandarin Chinese

Publications

Abbasi K, Wang D, Fusella M, Rand B, Avishai A. Methods for conducting electron backscattered diffraction (EBSD) on polycrystalline organic molecular thin films. Microscopy and Microanalysis, 2018; 6:1-4.

Wang J, Li Z, Wang D, Qiu S, Ernst F. Thermal stability of low-temperature-carburized austenitic stainless steel. Acta Materialia, 2017; 128:235-240.

Zangiabadi A, Dalton JC, Wang D, Ernst F, Heuer AH. The formation of martensitic austenite during nitridation of matensitic and duplex stainless steels. Metallurgical and Materials Transactions A, 2017; 48:8-13.

Wang D, Kahn H, Ernst F, Heuer AH. “Colossal” interstitial supersaturation in delta ferrite in stainless steel: (II) low-temperature nitridation of the 17-7 PH Alloy. Acta Materialia, 2017; 124:237-246.

Sun H, Chen D, Wang D, Sanchez-Soto M, Schiraldi DA. Tough polymer aerogels incorporating a conformal inorganic coating for low flammability and durable hydrophobicity. Applied Materials and Interfaces, 2016; 8:13051-13057.

Wang D, Kahn H, Ernst F, Heuer AH. NiAl precipitation in delta ferrite grains of 17-7 precipitation-hardening stainless steel during low-temperature interstitial hardening. Scripta Materialia, 2015; 108:136-140.

Wang D, Chen C-W, Yang F, Sharghi-Moshtaghin R, Kahn H, Ernst F, Williams REA, McComb DW, Heuer AH. “Colossal” interstitial supersaturation in delta ferrite in stainless steel: (I) low-temperature carburization. Acta Materialia, 2015; 86:193-207.

Wang D, Ernst F, Kahn H, Heuer AH. Cellular precipitation at a 17-7 PH stainless steel interphase interface during low-temperature nitridation. Metallurgical and Materials Transactions A, 2014; 45:3578-3585.

Wang D, Kahn H, Lewandowski JJ, Ernst F, Michal GM, Heuer AH. “Sustained-load crack growth of hydrogen-charged surface-hardened 316L stainless steel. Material Science and Engineering A, 2012; 556:43-50.

Hsu JP, Wang D, Kahn H, Ernst F, Michal GM, Heuer AH. Fatigue crack growth in interstitially hardened AISI 316L stainless steel. International Journal of Fatigue, 2012; 47:100-105.

Prior Experience

Engineer, Case Western Reserve University, 2014-2019

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Materials Science and Engineering, Case Western Reserve University, 2014
  • M.S., Materials Science and Engineering, Case Western Reserve University, 2011
  • B.S., Materials Science and Engineering, Tianjin University, China, 2008

LANGUAGES

  • Mandarin Chinese